JavaScript - Check Box Values Calculation + Display

Hi friends,

i have xnl file like

<DATAPACKET >
<data1>
<R_ID>101</R_ID>
<R_PRE>38</R_PRE>
<R_PRE2>39</R_PRE2>
<R_TEMP>8.35</R_TEMP>
<R_TENP2>0.64</R_TENP2>
</data1>
<data1>
<R_ID>102</R_ID>
<R_PRE>36</R_PRE>
<R_PRE2>37</R_PRE2>
<R_TEMP>7.23</R_TEMP>
<R_TENP2>1.21</R_TENP2>
</data1>
<data1>
<R_ID>103</R_ID>
<R_PRE>34</R_PRE>
<R_PRE2>36</R_PRE2>
<R_TEMP>7.21</R_TEMP>
<R_TENP2>1.95</R_TENP2>
</data1>
<data1>
<R_ID>104</R_ID>
<R_PRE>32</R_PRE>
<R_PRE2>35</R_PRE2>
<R_TEMP>6.25</R_TEMP>
<R_TENP2>2.30</R_TENP2>
</data1>
<data1>
<DATAPACKET >

then i have textbox...when i type 101 its go and get all data in the row in text area like

101
32
6025
2.30

please give me any idea how to do this

i m try this
if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
}
else {// code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.open("GET", "Refrigerater.xml", false);
xmlhttp.send();
xmlDoc = xmlhttp.responseXML;
x = xmlDoc.getElementsByTagName("ROWDATA");

//x = xmlDoc.getElementsByTagName("data1");

function displayInfo(selBox) {
x = xmlDoc.getElementsByTagName("ROWDATA");
var col = (selBox.options[selBox.selectedIndex].text);
document.getElementById("show").innerHTML = "&nbsp;" + col;
}

Please resolve my problem

Thanks
Venkat.S

I have a order form page and on submitting it opens a new web page that displays the order totals. Below is my code and most probably wrong but for me it seems logic. Please assist.

Order Form:
Code:

<td colspan="1" height="120" align="left"> 
<select style="margin-left: 60px; background-color: #00FF77;" name="prod_bed_359"  onchange="calculateValue(this.form)">
<option value="0">0</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
</select> R359</td></tr>

New page I called a unction to print:
Code:

function itemsOrdered() {
var beds = document.forms[2].prod_bed_359.value;
document.write("<pre><strong>Description\t\tQuantity\tPrice</strong></pre>");
document.write("<pre>Doggie Bed\t\t" + beds + "</pre>");	
}

This is still basic as I need to get this right before adding the prices and totals which is also extracted from the order page.

On this webpage
http://www.corkdiscos.com/testimonials.html

i have a like button.
when a user clicks like a comment box appears.
when i unlike the button the comment box disappears

this is ok but when a user has already liked the facebook page and comes to my webpage
the comment box does not show.

so im looking for a piece of javascript to check if a user has like the button on my page and if so to show the comment box.

please check my source code of the website http://www.corkdiscos.com/testimonials.html to see what i have so far.

any help would be greatly appreciated

Hi everyone, I am new to Javascript and took a class or 2 in college, but need some help.

I need to make a calculation for a webpage that will do the following:

Client will insert AWG (wire ) Size, then it will derive the correct Circular Mils that the AWG is equal to from an Access Database ( I assume this is the way to set that up or if I can in Javascript itself, thats fine as well ), then Multiply it by the Number of Strands that the Client will also insert.

I had this all set up in Visual Basic and working great, and my boss said he does not want it in a pop up box but prefers it on the website itself hence me reverting to Javascript for this.

To visualize it Image 2 boxes with AWG and STRANDS that the client will put in, then another box with TOTAL CMA where the answer will pop up after it has multipled by the AWG individual CMA and number of Strands.

I have the general idea to set it up, just do not know how to get the Database in there and Code it properly or whatever.

I would appreciate any assistance I can get :-) Thanks everyone.

I've started studying JavaScript recently. The following simple scenario from the Russian textbook cannot be implemented on my PC.
Code:

<HTML>
<HEAD>
<TITLE>Object Math Example</TITLE>

</HEAD>

<BODY>
<h1>Object Math Example</h1>
<p>Насколько случайны числа, полученные генератором случайных чисел? Подсчитаем среднее 5000 случайных чисел.</p>

<SCRIPT LANGUAGE="JavaScript">
total = 0;
for (i = 0; i<5000; i++)  {

        num = Math.random();
        total += num;
        document.status = "Generated " + i + " numbers";
      }

average = total / 5000;
average = Math.round(average * 1000 / 1000);
document.write("<h2>" arithmetic mean of random numbers  + average + "</h2>");

</SCRIPT>

</BODY>
</HTML>

I just typed the script char by char. I use Firefox browser, v.3.5.7. The error console does not display any mistakes.
Please, explain me what is wrong in the code.

I need help with a javascript calculation. I am a noobie developer as you will probably see by my script but here are my goals:

I already have a working bmi calculator for my website where visitor will enter height and current weight to calculate their current bmi. then I want to have a reverse bmi calculator to grab the same height and weight from said bmi calculator to give a calculation with a fillable goal bmi (example: 18-24 "healthy bmi") to read out a goal weight for them to achieve.

I have already figured out the first part of the bmi calculation now i just need the second calculation to grab the height and weight from original bmi calculator without needing to be filled in again and compute result in a second table. I will post code that I have come up with so far for the whole page. Thank you in advance for your help!


[CODE]
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html>

<head>

<title>
HCG Drops Fat Lose 1-2 pounds Per Day!
</title>




<style type="text/css">






#wrapall {
width:1000px;
align:center;
margin-left: 7em;
margin-right: 7em;
}

#navigationbar{



}

#bmibar {
width:973px;
background-image:url(bmibar2.jpg);
background-repeat:no-repeat;
background-position:left bottom;
padding-bottom:16em;
margin:4px;
}
#Hcgborder {
width:973px;
background-image:url(index_15.jpg);
background-repeat:no-repeat;
background-position:left bottom;
padding-bottom:17em;
}

#Hcgborder h3 {
width:973px;
background-image:url(index_12.jpg);
background-repeat:no-repeat;
background-position:left top;
margin:0px;
padding-left:4em;
padding-top:8em;
}

p {
background-image:url(index_13.jpg);
background-repeat:repeat-y;
background-position:left center;
margin:0px;
padding-left:4em;
padding-right:4em;
font:family"arial"
}

#bmiscale{
font-size:14px;
padding-left:15px;

}

#Hcgborder2 {
width:973px;
background-image:url(index_19.jpg);
background-repeat:no-repeat;
background-position:left bottom;
padding-bottom:0.5em;
}

#dhtmlgoodies_bmi_calculator{
width:180px; /* Width of entire calculator */
height:145px; /* Height of entire calculator */
font-family: Trebuchet MS, Lucida Sans Unicode, Arial, sans-serif; /* Fonts to use */
}
#dhtmlgoodies_bmi_calculator .calculator_form{ /* Form */
width:180px; /* Width of form div */
float:left; /* Position the form at the left of the graph */
padding-left:5px;
padding-right:5px;
}
#dhtmlgoodies_bmi_calculator input{
width:130px;
}
#dhtmlgoodies_bmi_calculator .calculator_form .textInput{
width:40px; /* Width of small text inputs */
text-align:right; /* Right align input text */
}



.barContainer{ /* DIV for both the multicolor bar and users weight bar */
position:absolute;
bottom:0px;
border:0px solid #4ff;
border-bottom:0px;
text-align:center;
vertical-align:middle;
}
.barContainer div{ /* colored div inside "barContainer */
border-bottom:1px solid #000;
}
.barContainer .labelSpan{ /* Label indicating users BMI */
background-color:#FFF; /* White BG */
border:1px solid #000; /* Black border */
padding:1px; /* "Air" inside the box */
font-size:0.9em; /* Font size */
}

.clear{ /* Clearing div - you shouldn't do anything with this one */
clear:both;
}

</style>
<script type="text/javascript">


var useCm = false; // Using centimetre for height, false = inch
var useKg = false // Using kilos for weight, false = pounds
var graphColors = ['#00baff','#02eb07','#ffb400','#ff0000'];
var graphLabels = [''];
var labelsPerRow = 1; /* Help labels above graph */
var barHeight = 50; // Total height of bar
var barWidth = 50; // Width of bars */

// Don't change anything below this point */

var calculatorObj;
var calculatorGraphObj;
var bmiArray = [0,18.5,25,30,60]; /* BMI VALUES */
var weightDiv = false;

function calculateBMI()
{
var height = document.bmi_calculator.bmi_height.value;
var weight = document.bmi_calculator.bmi_weight.value;
height = height.replace(',','.');
weight = weight.replace(',','.');
if(!useKg)weight = weight / 2.2;
if(!useCm)height = height * 2.54;

if(isNaN(height))return;
if(isNaN(weight))return;

height = height / 100;
var bmi = weight / (height*height);
createWeightBar(bmi);
}

function createWeightBar(inputValue){

if(!weightDiv){
self.status = Math.random();
weightDiv = document.createElement('DIV');
weightDiv.style.width = barWidth + 'px';
weightDiv.className='barContainer';
weightDiv.style.left = Math.round((calculatorGraphObj.offsetWidth/2) + ((calculatorGraphObj.offsetWidth/2) /2) - (barWidth/2)) + 'px';
calculatorGraphObj.appendChild(weightDiv);
var span = document.createElement('SPAN');
weightDiv.appendChild(span);

var innerSpan = document.createElement('SPAN');
innerSpan.className='labelSpan';
span.appendChild(innerSpan);
}else{
span = weightDiv.getElementsByTagName('SPAN')[0];
innerSpan = weightDiv.getElementsByTagName('SPAN')[1];
}
var color = graphColors[graphColors.length-1];
for(var no = bmiArray.length-1;no>0;no--){
if(bmiArray[no]>inputValue)weightDiv.style.backgroundColor = graphColors[no-1];
}
if(inputValue/1>1){
innerSpan.innerHTML = inputValue.toFixed(2);
span.style.display='inline';
}else span.style.display='none';
var height = Math.min(Math.round(barHeight * (inputValue / bmiArray[bmiArray.length-1])),barHeight-10);
span.style.lineHeight = Math.round(height) + 'px';
weightDiv.style.height = height + 'px';

}


function validateField()
{
this.value = this.value.replace(/[^0-9,\.]/g,'');

}

function initBmiCalculator()
{
calculatorObj = document.getElementById('dhtmlgoodies_bmi_calculator');
calculatorGraphObj = document.getElementById('bmi_calculator_graph');
if(!useCm)document.getElementById('bmi_label_height').innerHTML = 'inches';
if(!useKg)document.getElementById('bmi_label_weight').innerHTML = 'pounds';

var heightInput = document.getElementById('bmi_height');
heightInput.onblur = validateField;
var widthInput = document.getElementById('bmi_height');
widthInput.onblur = validateField;

var labelDiv = document.createElement('DIV');
labelDiv.className = 'graphLabels';
calculatorGraphObj.appendChild(labelDiv);
for(var no=graphLabels.length-1;no>=0;no--){
var colorDiv = document.createElement('DIV');
colorDiv.className='square';
colorDiv.style.backgroundColor = graphColors[no];
colorDiv.innerHTML = '<span></span>';
labelDiv.appendChild(colorDiv);

var labelDivTxt = document.createElement('DIV');
labelDivTxt.innerHTML = graphLabels[no];
labelDiv.appendChild(labelDivTxt);
labelDivTxt.className='label';

if((no+1)%labelsPerRow==0){
var clearDiv = document.createElement('DIV');
clearDiv.className='clear';
labelDiv.appendChild(clearDiv);
}
}
var clearDiv = document.createElement('DIV');
clearDiv.className='clear';
labelDiv.appendChild(clearDiv);

var graphDiv = document.createElement('DIV');
graphDiv.className='barContainer';
graphDiv.style.width = barWidth + 'px';
graphDiv.style.left = Math.round(((calculatorGraphObj.offsetWidth/2) /2) - (barWidth/2)) + 'px';
graphDiv.style.height = barHeight;
calculatorGraphObj.appendChild(graphDiv);

var totalHeight = 0;
for(var no=bmiArray.length-1;no>0;no--){
var aDiv = document.createElement('DIV');
aDiv.style.backgroundColor = graphColors[no-1];
aDiv.innerHTML = '<span></span>';
var height = Math.round(barHeight * (bmiArray[no] - bmiArray[no-1]) / bmiArray[bmiArray.length-1]) - 1;
aDiv.style.height = height + 'px';
graphDiv.appendChild(aDiv);

}

createWeightBar(1);
}

</script>





<!--
function cal_bmi(lbs, ins){
h2 = ins * ins;
bmi = lbs * h2/703
wtl = h2/703 * 24.9
f_bmi = Math.floor(bmi);
diff = bmi - f_bmi;
diff = diff * 10;
diff = Math.round(diff);
if (diff == 10){
f_bmi += 1;
diff = 0;
}
bmi = f_bmi + "." + diff;
return bmi;
}
function compute(){
var f = self.document.forms[0];

w = f.wt.value;
v = f.htf.value;
u = f.hti.value;

// Format values for the calculation

if (!chkw(u)){
var ii = 0;
f.hti.value = 0;
} else {
var ii = parseInt(f.hti.value);
}

var fi = parseInt(f.htf.value * 12);
var i = fi + ii;

// Do validation of remaining fields

if (!chkw(v)){
alert("Please enter your height.");
f.htf.focus();
return;
}
if (!chkw(w)){
alert("Please enter your weight.");
f.wt.focus();
return;
}

// Perform calculation

f.bmi.value = cal_bmi(w, i);
f.bmi.focus();
}

function chkw(w){
if (isNaN(parseInt(w))){
return false;
} else if (w < 0){
return false;
}
else{
return true;
}
}
// -->









</style>

</head>


<body>

<div id="wrapall" align="center">

<img src="index_01_01.jpg" alt="Hcg drops fat banner">
<br/>
<div id="navigationbar">
<a href="http://www.hcgdropsfat.com"><img src=hcghomeog.jpg border=0></a>
<img src="hcgblogo.jpg" alt="Hcg blog"/>
<img src="hcgfaqo.jpg" alt="Hcg faq">
<img src="hcgresourceso.jpg" alt="Hcg resources">
<img src="hcgtestimonialso.jpg" alt="Hcg testimonials">
<img src="hcgsupporto.jpg" alt="Hcg support">
<img src="hcgordero.jpg" alt="Hcg order">


<div id="bmibar">
<div style="position: absolute; top: 515px; left: 170px"; style="font-family: arial"; align="left";>
How much is your weight in <br/>relation to your height

<br/>



<!--BMI CALCULATOR SCRIPT-->


<div id="dhtmlgoodies_bmi_calculator">
<div class="calculator_form">
<form name="bmi_calculator">
<table>
<tr>
<td><label for="bmi_height">Height</label>:</td><td><input class="textInput" type="text" id="bmi_height" name="bmi_height"> <span id="bmi_label_height">cm</span></td>
</tr>
<tr>
<td><label for="bmi_weight">Weight</label>:</td><td><input class="textInput" type="text" id="bmi_weight" name="bmi_weight"> <span id="bmi_label_weight">kg</span></td>
</tr>
<tr>
<td colspan="2"><input type="button" onclick="calculateBMI()" value="Find BMI"></td>
</tr>
</table>
</form>
</div>
<div class="calculator_graph" id="bmi_calculator_graph">
</div>
</div>
<script type="text/javascript">
initBmiCalculator();
</script>




</div>



<div style="position: absolute; top: 515px; left: 405px"; style="font-family: arial"; align="left";>
What is your BMI category? <br/>This will help determine <br/>how much you need to lose
<br/><br/><div id="bmiscale">Underweight = Under 18.5
<br/>Normal weight = 18.5 – 24.9
<br/>Overweight = 25 – 29.9
<br/>Obesity = 30 or more
<br/><br/>
</div></div>

<div style="position: absolute; top: 515px; left: 640px"; style="font-family: arial"; align="left";>
Calculate approximately how <br/>much weight you should lose<br/> to be at a healthy BMI




<!--REVERSE BMI CALCULATOR-->


<td width="81%" valign="top">
<br/><div align="center" class="page_header">Reverse BMI Calculator</div><br/>
<div align="center" class="main_text"></div>
<form action="" method="post" name="BMI_input" class="main_text" id="BMI_input">

<div style="text-align: center;"><font face="Arial, Helvetica, sans-serif">Target BMI:<b>
<input id="FormsEditField4" type="text" name="wt" value="24" size="3" maxlength="2" />
<br />
</b></font></div>
<div style="text-align: center;"> <font face="Arial, Helvetica, sans-serif">
<input type="button" name="FormsButton1" value="Find Target Weight" id="FormsButton1" onclick="self.compute()" />
</font></div>
<div style="text-align: center;"><font face="Arial, Helvetica, sans-serif">This
is your Target Weight: <br />
<input id="FormsEditField5" type="text" name="bmi" value="" size="4" maxlength="5" />
&nbsp; </font></div>


</div>


</div>

<div id="Hcgborder">

<h3></h3>

<p align="left"><b>

WHAT IS HCG?

</b><BR/><BR/>In simple terms: its a hormone protein produced by pregnant women that when used as a homeopathic dietary supplement, will assist in a revolutionary cure to the traditional diet routine.

<BR/><BR/><b>HCG is so unique from other diets in 3 major ways:

</b>

<br/><BR/><img src="muscletissue.jpg" alt="practice"style="float:right;" width="250px" height="250px"/>
1. USES HIGHEST FAT AS PRIMARY FUEL SOURCE FOR THE BODY - it begins to break down the abnormally high body fat as the primary fuel source (BURNS ALOT OF FAT!)


<BR/>2. DOESNT EAT AT VITAL MUSCLE TISSUE - it will preserve and maintain lean body muscle (without HCG THE BODY WOULD DEPLETE VITAL MUSCLE TISSUE ON A LOW CALORIE DIET. Also if you burn muscle you also lose metabolism for each pound of muscle you lose you also lose 50 calories of metabolism)


<BR/>3. WHILE MOST DIETS SLOW METABOLISM HCG ACTUALLY MAINTAINS IT EVEN AFTER THE DIET - because hcg maintains lean muscle and maintains metabolism, you keep your metabolism in check long after the diet program so you reset your bodys roaming weight.
<BR/><BR/>THE HOMEOPATHIC DROPS YOU WILL FIND ON OUR SITE ARE ALL NATURAL

<br/><BR/><b>HOW LONG HAS IT BEEN AROUND?</b>
<BR/><BR/>HCG or (Human chorionic gonadotropin)<img src="nicefigure.jpg" alt="Hcg stored fat" style="float:right;" width="250px" height="250px"/> is a protein hormone </div><!--p1-->



</div><!--Hcgborder-->

<div id="Hcgborder2">
<p><b>hello</b></p>

<p>Hello again</p>
</div><!--Hcgborder2-->

</div>
</div><!--wrapall-->
</body>


</html>

[CODE]

Hi,

I'm trying to make a calculator app; with a few differences.

I have a text field with a numberpad below it, I got the numbers to show up in the text field, but am unsure as to how when I hit the enter button - it would store them in a variable?...I am also wondering as to how it would store current value and then allow me to input another value(maybe on the next page) and either subtract or add to it(the first value that is stored).

I am also wondering how to get a decimal point in place(need it for currency).

Any help would be greatly appreciated!


Here is my code:

Code:

<html>
<head>
<script type = "text/javascript">
function decPoint(str){
if (str.indexOf('.') == -1) str += ".";
var decNum = str.substring(str.indexOf('.')+1, str.length);
if (decNum.length > 2)
{
alert("Invalid more than 2 digits after decimal")
}
else {
alert("Valid no")
}
}

var ent = document.write(document.getElementById("curamt").value);


</script>
</head>

<body border = "1"; color = "blue";>
<div id = "cur">
<p>amount is: <script>document.getElementById("amount").innerHTML = ent);</script>
</p>


<b>Please type in price of item:</b>
<form name = "calculator">
<table border = "1"; color = "blue";>
<tr>
   <td colspan = "3" width="75%" align = "center">
      <input type = "tel" id = "curamt" name = "tinput" maxlength="4" size="6">
   </td>
</tr>

     <table>
      <tr>

       <td><input type = "button" name = "one" value = " 1 " onclick = "calculator.tinput.value += '1'"></td>
       <td><input type = "button" name = "two" value = " 2 " onclick = "calculator.tinput.value += '2'"></td>
       <td><input type = "button" name = "three" value = " 3 " onclick = "calculator.tinput.value += '3'"></td>
      </tr>  
      <tr>
       <td><input type = "button" name = "four" value = " 4 " onclick = "calculator.tinput.value += '4'"></td>
       <td><input type = "button" name = "five" value = " 5 " onclick = "calculator.tinput.value += '5'"></td>
       <td><input type = "button" name = "six" value = " 6 " onclick = "calculator.tinput.value += '6'"></td>
      </tr>
      <tr>
       <td><input type = "button" name = "seven" value = " 7 " onclick = "calculator.tinput.value += '7'"></td>
       <td><input type = "button" name = "eight" value = " 8 " onclick = "calculator.tinput.value += '8'"></td>
       <td><input type = "button" name = "nine" value = " 9 " onclick = "calculator.tinput.value += '9'"></td>
      </tr>
      <tr>
       <td><input type = "reset" name = "clear" value = " c " onclick = "calculator.tinput.value = ''"></td>
       <td><input type = "button" name = "zero" value = " 0 " onclick = "calculator.tinput.value += '0'"></td>
       <td><input type = "submit" id = "amount" name = "enter" value = " e " onsubmit = "ent(); return false;"></td>
      </tr>
 </table>
 
 </table>
   </form>    
     </div>  
     </body>  
 
</html>

Ok I am looking for a simple bmi calculator that calculates body mass index then in a seperate table calculates what a target weight should be based on the goal bmi. no need for making it look fancy, just functionality for now. thanks!

The problem that I am facing is my total amount comes out to $102.46 through my calculations on the page. But when it is moved over to PayPal, the value becomes $102.44. I have many more amount that are also either up .2 cents or down .2 cents. I managed to track this down as a rounding issue. Anytime I do the math, it rounds the amount off and gives the total. But since quantity is involved which is done through PayPal, I had to divide my total by the quantity to bring it back to its original amount thus allowing PayPal to multiply the amount by the quantity.

I've pulled my hair out on this one. Ay help would be appreciated.

Thank you

Code:

<html>
<head>
<title>TESTING</title>
<script src="SpryAssets/SpryValidationSelect.js" type="text/javascript"></script>
<script src="SpryAssets/SpryValidationCheckbox.js" type="text/javascript"></script>
<script src="SpryAssets/SpryValidationTextField.js" type="text/javascript"></script>
<link href="SpryAssets/SpryValidationSelect.css" rel="stylesheet" type="text/css">
<link href="SpryAssets/SpryValidationCheckbox.css" rel="stylesheet" type="text/css">
<link href="SpryAssets/SpryValidationTextField.css" rel="stylesheet" type="text/css">
</head>

<td width="95%" align="center" class="TextoImageSpace"><table border="0" cellpadding="0" cellspacing="0" class="TextoImageSpace_center">
    <tr>
      <td align="center"><h2>Pricing</h2>
        <form action="https://www.paypal.com/cgi-bin/webscr" method="post" name="price" id="price">
          <p>Select amount please.</p>
          <p>
            <input type="hidden" name="cmd" value="_xclick" />
            State: <br />
            <span id="spryselect1">
            <!-- selects the state // onclick changes the variables specified values -->
            <select name="combo0" id="combo_0" onclick="roundNumber(amount2.value, 2);roundNumberTax(tax.value, 2);roundNumberProduct(product.value, 2);roundNumberShipping(shipping.value, 2);roundNumberAmount(amount2.value, 2)" style="width:200px;">
              <option selected="selected"> </option>
              <option value="70">Arizona</option>
            </select>
            <span class="selectRequiredMsg"></span></span><br />
            Quantity: <br />
            <span id="spryselect2">
            <!-- selects the quantity // onclick changes the variables specified values -->
            <select name="combo1" id="combo_1" onclick="roundNumber(amount2.value, 2);roundNumberTax(tax.value, 2);roundNumberProduct(product.value, 2);roundNumberShipping(shipping.value, 2);roundNumberAmount(amount2.value, 2)" style="width:200px;">
              <option selected="selected"> </option>
              <option value="4">4 - $20.95</option>
            </select>
            <span class="selectRequiredMsg"></span></span><br />
            Product: <br />
            <span id="sprytextfield11">
            <label>
            <input type="text" name="product" id="txt_product" disabled="disabled" value="" style="width:200px;" />
            </label>
            </span><br />
            Shipping: <br />
            <span id="sprytextfield9">
            <label>
            <input type="text" name="shipping" id="txt_shipping" disabled="disabled" value="" style="width:200px;" />
            </label>
            </span><br />
            Taxes: <br />
            <span id="sprytextfield10">
            <label>
            <input type="text" name="tax" id="txt_tax" disabled="disabled" value="" style="width:200px;" />
            </label>
            </span><br />
            Total: <span id="sprytextfield8">
            <input type="hidden" name="amount" id="txt_price" value="" style="width:200px;" />
            </span>
            <input type="hidden" name="amount3" id="txt_price3" value="" style="width:200px;" />
            <br />
            <span id="sprytextfield7">
            <input type="text" name="amount2" id="txt_price2" disabled="disabled" value="" style="width:200px;" />
            </span></p>
          <hr width="100%" />
          <p>Please fill in details.</p>
          <p>
            <input type="hidden" name="item_name" value="TEST ITEM" />
            <input type="hidden" name="button_subtype" value="products" />
            <input type="hidden" name="rm" value="1" />
            <input type="hidden" name="return" value="http://www.example.com/" />
            <input type="hidden" name="cancel_return" value="http://www.example.com/" />
            <input type="hidden" name="currency_code" value="USD" />
            <input type="hidden" name="bn" value="PP-BuyNowBF:btn_buynowCC_LG.gif:NonHosted" />
            <input type="hidden" name="address_override" value="1" />
            <input type="hidden" name="shipping" value="0" />
            <input type="hidden" name="business" value="wayne@lifelikemedia.ca" />
            <input type="hidden" name="quantity" id="quantity" value="1" />
            <input type="hidden" name="state" id="state" value="" />
            First Name: <br />
            <span id="sprytextfield1">
            <input type="text" name="first_name" value="TEST" style="width:200px;" />
            <span class="textfieldRequiredMsg"></span></span><br />
            Last Name: <br />
            <span id="sprytextfield2">
            <input type="text" name="last_name" value="TEST" style="width:200px;" />
            </span> <br />
            Address: <br />
            <span id="sprytextfield3">
            <input type="text" name="address1" value="1234 TEST STREET" style="width:200px;" />
            <span class="textfieldRequiredMsg"></span></span><br />
            City: <br />
            <span id="sprytextfield4">
            <input name="city" type="text" value="Scottsdale" style="width:200px;" />
            <span class="textfieldRequiredMsg"></span></span><br />
            ZIP Code: <br />
            <span id="sprytextfield5">
            <input type="text" name="zip" value="85260" style="width:200px;" />
            </span><br />
            Country: <br />
            <span id="sprytextfield6">
            <input name="country" type="text" disabled="disabled" value="US" style="width:200px;" />
            </span><br />
            <br />
            <span id="sprycheckbox1">
            <label>
            <input type="checkbox" name="replacePolicy" id="replacePolicy" />
            </label>
            <span class="checkboxRequiredMsg">Please read policy.</span></span> <a href="#" class="style10" onClick="window.open('replace.html','popup','width=400,height=300,scrollbars=yes,resizable=yes,toolbar=no,directories=no,location=no,menubar=no,status=no,left=50,top=0'); return false">Please read policy.</a><br />
            <br />
            <input type="image" name="submit" border="0"
src="http://www.thinkanddone.com/finance/buynow.jpg" 
alt="PayPal - The safer, easier way to pay online" />
          </p>
        </form></td>
    </tr>
  </table>
  <script type="text/javascript">

	var shipping = document.getElementById("txt_shipping").value;
	var tax = document.getElementById("txt_tax").value;
	var product = document.getElementById("txt_product").value;

// rounds total amount off
function roundNumber(rnum, rlength) { // Arguments: number to round, number of decimal places
var v1 = document.getElementById("combo_1").value, v2 = document.getElementById("combo_0").value;
  var newnumber = Math.round(rnum*Math.pow(10,rlength))/Math.pow(10,rlength);
  var newnumber2 = Math.round(rnum*Math.pow(10,rlength))/Math.pow(10,rlength);
  document.price.amount2.value = newnumber.toFixed(2); // Output the result to the form field
  document.price.amount.value = (newnumber2 / v1).toFixed(2);
}

// rounds tax off
function roundNumberTax(rnum, rlength) { // Arguments: number to round, number of decimal places
  var taxnumber = Math.round(rnum*Math.pow(10,rlength))/Math.pow(10,rlength);
  document.price.tax.value = taxnumber.toFixed(2); // Output the result to the form field
}

// rounds product off
function roundNumberProduct(rnum, rlength) { // Arguments: number to round, number of decimal places
  var productnumber = Math.round(rnum*Math.pow(10,rlength))/Math.pow(10,rlength);
  document.price.product.value = productnumber.toFixed(2); // Output the result to the form field
}

// rounds shipping off
function roundNumberShipping(rnum, rlength) { // Arguments: number to round, number of decimal places
  var shippingnumber = Math.round(rnum*Math.pow(10,rlength))/Math.pow(10,rlength);
  document.price.shipping.value = shippingnumber.toFixed(2); // Output the result to the form field
}

// rounds paypal amount off
function roundNumberAmount(rnum, rlength) { // Arguments: number to round, number of decimal places
  var amountnumber = Math.round(rnum*Math.pow(10,rlength))/Math.pow(10,rlength);
  document.price.amount2.value = amountnumber.toFixed(2); // Output the result to the form field
}

window.onload = function() {

    var dropChange = function() {

		// Declaring variables
        var v1 = document.getElementById("combo_1").value, v2 = document.getElementById("combo_0").value;
		var amount3 = document.getElementById("txt_price3").value, amount = document.getElementById("txt_price").value;
		
		document.getElementById("txt_price3").value = (amount);
		
		document.getElementById("quantity").value = (v1);

        if (v2 == 70) {

            document.getElementById("state").value = ("AZ");

            }
		
		<!-- when state is selected, these calculations are done -->
		if (v2 == 70) {
			if (v1 == 4) {
				document.getElementById("txt_price2").value = v1 * 20.95;
				document.getElementById("txt_product").value = document.getElementById("txt_price2").value;
				document.getElementById("txt_price2").value = document.getElementById("txt_product").value * 0.0795;
				document.getElementById("txt_tax").value = document.getElementById("txt_price2").value;
				document.getElementById("txt_price2").value = 12;
				document.getElementById("txt_shipping").value = document.getElementById("txt_price2").value;
				document.getElementById("txt_price2").value = v1 * 20.95 * 1.0795 + 12.00;
			}
		}
    };

	document.getElementById("combo_0").onchange = dropChange;
	
    document.getElementById("combo_1").onchange = dropChange;

}; 
</script>
  <script type="text/javascript">
<!--
var spryselect1 = new Spry.Widget.ValidationSelect("spryselect1", {validateOn:["change"]});
var spryselect2 = new Spry.Widget.ValidationSelect("spryselect2", {validateOn:["change"]});
var sprycheckbox1 = new Spry.Widget.ValidationCheckbox("sprycheckbox1", {validateOn:["change"]});
var sprytextfield6 = new Spry.Widget.ValidationTextField("sprytextfield6", "none");
var sprytextfield5 = new Spry.Widget.ValidationTextField("sprytextfield5", "zip_code", {validateOn:["change"]});
var sprytextfield4 = new Spry.Widget.ValidationTextField("sprytextfield4", "none");
var sprytextfield3 = new Spry.Widget.ValidationTextField("sprytextfield3", "none");
var sprytextfield2 = new Spry.Widget.ValidationTextField("sprytextfield2", "none");
var sprytextfield1 = new Spry.Widget.ValidationTextField("sprytextfield1", "none");
var sprytextfield7 = new Spry.Widget.ValidationTextField("sprytextfield7", "none", {validateOn:["change"]});
var sprytextfield8 = new Spry.Widget.ValidationTextField("sprytextfield8", "currency", {validateOn:["change"]});
var sprytextfield10 = new Spry.Widget.ValidationTextField("sprytextfield10");
var sprytextfield9 = new Spry.Widget.ValidationTextField("sprytextfield9");
var sprytextfield11 = new Spry.Widget.ValidationTextField("sprytextfield11");
//-->
</script>
</body>
</html>

Can someone PLEASE show me what I am doing wrong with my code here?

Basically, I have a registration form. In this registration form, I have 4 people register. It depends on each person birthyear to determine the amount of fees for each person.

The fees a Registration Fee, Hotel Fee, Meal Fee, Discount

Also, the trick is only first and second persons get Hotel Fee and Discount Fee. Third and Fourth person only pay Registration Fee and Meal Fee.

So when user select birthyear from a dropdown menu for each person, the fees will be automatically filled in the input fields for each person and then do a total calculation.

Each person will have a total of fees and there is another total field to automatically total up all 4 total fields from those 4 people.

So here is my code so far

Javascript
Code:

<script type="text/javascript">
			function doUpdate(year, num)
			{
				if (isNaN(year)) return;
				var regfee = '0';
				var meal = '0';
				var hotel = '0';
//REGISTRATION Price
				if (year >= 2000)
					{
						regfee = '0';
					}
				else if (year < 2000 && year > 1995 )
					{
						regfee = '20';
					}
				else
					{
						regfee = '30';
					}
//MEAL Price
				if (year < 2001)
					{
						meal = '80';
					}
				else if (year >= 2001 && year <= 2009)
					{
						meal = '60';
					}
				else
					{
						meal = '0';
					}
// HOTEL Price
				if(document.getElementById('year1').value!='')
					{
					hotel='199';
					}
				else if (document.getElementById('year2').value!='')
					{
					hotel='199';
					}
				
//DISCOUNT Price
				if (document.getElementById('vip'+num).checked==true)
					{
						if (year > 1993)
						{
						discount = '0';
						}
						else if (year == 1993)
						{
						discount = '0';
						}
						else
						{
						discount = '-20';
						}
					}
					else 
					{
						if (year > 1993)
						{
						discount = '0';
						}
						else if (year == 1993)
						{
						discount = '0';
						}
						else
						{
						discount = '-10';
						}
					
					}
				


				document.getElementById('regfee' + num).value = regfee;
				document.getElementById('meal' + num).value = meal;
				
				if(document.getElementById('year1').value!=''){
				
				document.getElementById('hotel1').value = hotel;
				document.getElementById('discount1').value = discount;

                                //Write to total field for second person
				document.getElementById('total1').value = parseInt(regfee)+parseInt(meal)+parseInt(hotel)+parseInt(discount); 
				}
				if(document.getElementById('year2').value!=''){
				document.getElementById('hotel2').value = hotel;
				document.getElementById('discount2').value = discount;
                                
                               //Write to total field for second person
				document.getElementById('total2').value = parseInt(regfee)+parseInt(meal)+parseInt(hotel)+parseInt(discount); 
				}
				if(document.getElementById('year3').value!='' && document.getElementById('year4').value!=''){
				document.getElementById('hotel3').value == '0';
				document.getElementById('discount3').value == '0';
				document.getElementById('hotel4').value == '0';
				document.getElementById('discount4').value == '0';
                                
                               // Write to total fields for third and fourth person
				document.getElementById('total3').value = parseInt(regfee)+parseInt(meal); 
				document.getElementById('total4').value = parseInt(regfee)+parseInt(meal); 
				}
				
// Write to subtotal field by sum up all 4 total fields				 	
document.getElementById('subtotal1').value = parseInt(document.getElementById('total1').value) + parseInt(document.getElementById('total2').value) + parseInt(document.getElementById('total3').value) + parseInt(document.getElementById('total4').value); 	
		}

		</script>

and here is my form
Code:

<form action="form.html" method="post" class="js_submit" name="form1" id="form1">
<table>
<tr>
<td>VIP</td>
<td>Birthyear</td>
<td>Registration Fee</td>
<td>Hotel Fee</td>
<td>Meal Fee</td>
<td>Discount</td>
<td>Total</td>
</tr>
<!-----------First Persion ------------------->
<tr>
<td><input type="checkbox" name="vip1" id="vip1" value="Y" class="inpt_c"  /></td>
<td><select name="year1" id="year1" onchange='doUpdate(this.value * 1,1);'>
<option selected="selected"></option>
<option value="2011">2011<option>
<option value="2010">2010</option>
<option value="2009">2009</option>
<option value="2008">2008</option>
<option value="2007">2007</option>
<option value="2006">2006</option>
<option value="2005">2005</option>
<option value="2004">2004</option>
<option value="2003">2003</option>
<option value="2002">2002</option>
<option value="2001">2001</option>
<option value="2000">2000</option>
<option value="1999">1999</option>
<option value="1998">1998</option>
<option value="1997">1997</option>
<option value="1996">1996</option>
<option value="1995">1995</option>
<option value="1994">1994</option>
<option value="1993">1993</option>
<option value="1992">1992</option>
<option value="1991">1991</option>
<option value="1990">1990</option>
<option value="1989">1989</option>
<option value="1988">1988</option>
<option value="1987">1987</option>
<option value="1986">1986</option>
<option value="1985">1985</option>
<option value="1984">1984</option>
<option value="1983">1983</option>
<option value="1982">1982</option>
<option value="1981">1981</option>                                                                                                    
</select></td>
<td><input type="text" id="regfee1" name="regfee1" class="inpt_a" value=""/></td>
<td><input type="text" value="" id="hotel1" name="hotel1" class="inpt_a" /></td>
<td><input type="text" value="" id="meal1" name="meal1" class="inpt_a" /></td>
<td><input type="text" value="" id="discount1" name="discount1" class="inpt_a"/></td>
<td><input type="text" value="" id="total1" name="total1" class="inpt_a" /></td>
</tr>
<!------------Second Person ----------------->
<tr>
<td><input type="checkbox" name="vip2" id="vip2" value="Y" class="inpt_c"  /></td>
<td><select name="year2" id="year2" onchange='doUpdate(this.value * 1,2);'>
<option selected="selected"></option>
<option value="2011">2011<option>
<option value="2010">2010</option>
<option value="2009">2009</option>
<option value="2008">2008</option>
<option value="2007">2007</option>
<option value="2006">2006</option>
<option value="2005">2005</option>
<option value="2004">2004</option>
<option value="2003">2003</option>
<option value="2002">2002</option>
<option value="2001">2001</option>
<option value="2000">2000</option>
<option value="1999">1999</option>
<option value="1998">1998</option>
<option value="1997">1997</option>
<option value="1996">1996</option>
<option value="1995">1995</option>
<option value="1994">1994</option>
<option value="1993">1993</option>
<option value="1992">1992</option>
<option value="1991">1991</option>
<option value="1990">1990</option>
<option value="1989">1989</option>
<option value="1988">1988</option>
<option value="1987">1987</option>
<option value="1986">1986</option>
<option value="1985">1985</option>
<option value="1984">1984</option>
<option value="1983">1983</option>
<option value="1982">1982</option>
<option value="1981">1981</option>                                                                                                    
</select></td>
<td><input type="text" id="regfee2" name="regfee2" class="inpt_a" value=""/></td>
<td><input type="text" value="" id="hotel2" name="hotel2" class="inpt_a" /></td>
<td><input type="text" value="" id="meal2" name="meal2" class="inpt_a" /></td>
<td><input type="text" value="" id="discount2" name="discount2" class="inpt_a"/></td>
<td><input type="text" value="" id="total2" name="total2" class="inpt_a" /></td>
</tr>
<!-----------Third Person ------------------->
<tr>
<td><input type="checkbox" name="vip3" id="vip3" value="Y" class="inpt_c"  /></td>
<td><select name="year3" id="year3" onchange='doUpdate(this.value * 1,3);'>
<option selected="selected"></option>
<option value="2011">2011<option>
<option value="2010">2010</option>
<option value="2009">2009</option>
<option value="2008">2008</option>
<option value="2007">2007</option>
<option value="2006">2006</option>
<option value="2005">2005</option>
<option value="2004">2004</option>
<option value="2003">2003</option>
<option value="2002">2002</option>
<option value="2001">2001</option>
<option value="2000">2000</option>
<option value="1999">1999</option>
<option value="1998">1998</option>
<option value="1997">1997</option>
<option value="1996">1996</option>
<option value="1995">1995</option>
<option value="1994">1994</option>
<option value="1993">1993</option>
<option value="1992">1992</option>
<option value="1991">1991</option>
<option value="1990">1990</option>
<option value="1989">1989</option>
<option value="1988">1988</option>
<option value="1987">1987</option>
<option value="1986">1986</option>
<option value="1985">1985</option>
<option value="1984">1984</option>
<option value="1983">1983</option>
<option value="1982">1982</option>
<option value="1981">1981</option>                                                                                                    
</select></td>
<td><input type="text" id="regfee3" name="regfee3" class="inpt_a" value=""/></td>
<td><input type="text" value="" id="hotel3" name="hotel3" class="inpt_a" /></td>
<td><input type="text" value="" id="meal3" name="meal3" class="inpt_a" /></td>
<td><input type="text" value="" id="discount3" name="discount3" class="inpt_a"/></td>
<td><input type="text" value="" id="total3" name="total3" class="inpt_a" /></td>
</tr>
<!----------Fourth Person -------------------->
<tr>
<td><input type="checkbox" name="vip4" id="vip4" value="Y" class="inpt_c"  /></td>
<td><select name="year1" id="year1" onchange='doUpdate(this.value * 1,4);'>
<option selected="selected"></option>
<option value="2011">2011<option>
<option value="2010">2010</option>
<option value="2009">2009</option>
<option value="2008">2008</option>
<option value="2007">2007</option>
<option value="2006">2006</option>
<option value="2005">2005</option>
<option value="2004">2004</option>
<option value="2003">2003</option>
<option value="2002">2002</option>
<option value="2001">2001</option>
<option value="2000">2000</option>
<option value="1999">1999</option>
<option value="1998">1998</option>
<option value="1997">1997</option>
<option value="1996">1996</option>
<option value="1995">1995</option>
<option value="1994">1994</option>
<option value="1993">1993</option>
<option value="1992">1992</option>
<option value="1991">1991</option>
<option value="1990">1990</option>
<option value="1989">1989</option>
<option value="1988">1988</option>
<option value="1987">1987</option>
<option value="1986">1986</option>
<option value="1985">1985</option>
<option value="1984">1984</option>
<option value="1983">1983</option>
<option value="1982">1982</option>
<option value="1981">1981</option>                                                                                                    
</select></td>
<td><input type="text" id="regfee4" name="regfee4" class="inpt_a" value=""/></td>
<td><input type="text" value="" id="hotel4" name="hotel4" class="inpt_a" /></td>
<td><input type="text" value="" id="meal4" name="meal4" class="inpt_a" /></td>
<td><input type="text" value="" id="discount4" name="discount4" class="inpt_a"/></td>
<td><input type="text" value="" id="total4" name="total4" class="inpt_a" /></td>
</tr>
<!------------Subtotal of all 4 totals above ------------>
<tr>
<td colspan="6"> <input name="subtotal1" type="text" id="subtotal1" class="inpt_a" value="" readonly="readonly"  /></td>
</tr>
</form>

Here is my form URL: http://daihoibaptit.org/form.html

Thanks for your help

Hi,

I'm trying to get my head around JS, but not too successfully yet.

My objective is probably simple (but not to me ): to have a form where visitors enter 12 separate digits (ideally in minutes & hours, but am happy to use decimals), and the average of these (to two decimal points) is returned as document.write is it? - along with other text, to make a complete & coherent sentence, including the average of the 12 numbers.

Does anyone have any code convenient that could do this?

Thanks,

LJ

What code must I use if I want to create an order form on my website where patrons can order and/or request a product and/or services from the price list, the order form should calculate the total amount of the products/services requested, the VAT of 15% and add that to the order amount, Please help?

I am a student trying to complete this assignment. Any assistance you can give me is greatly appreciated. My code is inserted below.

This is calculator program that I have gotten stuck on. Here is where I think I am at:

The program is now taking the 1st number entered displaying it and storing it in the variable "memory".
Operation (+,-,*,/) is added to the memory in function action1()
but then when the second number is entered it replaces memory with the second number. How can I get the variable memory to the whole string of 1st number,action, 2nd number?

Also once I do get that working correctly:
Wouldn't eval(document.calculator.display.value= memory) in my HTML for the "=" give me the calculation. ( if I could figure out how to have memory store the 1st number and action1 and 2nd number all together)
Or would eval(document.calculator.display.value) do it for me.
////////////////////////////////////////////////////////////////////////////////////

<html>
<head>
<title> Calculator</title>


</head>
<script type = "text/javascript" src="calculator2.js"></script>
<body>
<center>Calculator<br>
To use this calculator, CLICK a number, then an ACTION, then another
number, then the EQUALS button. <br>
Press "C" when ready to start over.
<br> The "N" button makes your previous number a negative.<br></center>

<form name="calculator">

<table border = "1" align ="center">
<tr>
<td ><input type = "text" size = 26 name = "display" id = ""/></td>
</tr>

<tr ><br />
<!-- first row of calculator -->
<td>
<input type = "button" value = " 7 " id = ""
onclick="newstring('7')">

<input type = "button" value = " 8 " id = ""
onclick="newstring('8')"/>
<input type = "button" value = " 9 " id = ""
onclick="newstring('9')">
<input type = "button" value = " / " id = ""
onclick="action1('/')">
</td>
</tr>
<tr ><br />
<!-- second row of calculator -->

<td>
<input type = "button" value = " 4 " id = ""
onclick="newstring('4')">
<input type = "button" value = " 5 " id = ""
onclick="newstring('5')">
<input type = "button" value = " 6 " id = ""
onclick="newstring('6')">
<input type = "button" value = " * " id = ""
onclick="action1('*')">
</td>
</tr>

<tr ><br />
<!-- third row of calculator -->

<td>
<input type = "button" value = " 1 " id = ""
onclick="newstring('1')">
<input type = "button" value = " 2 " id = ""
onclick="newstring('2')">
<input type = "button" value = " 3 " id = ""
onclick="newstring('3')">
<input type = "button" value = " - " id = ""
onclick="action1('-')">
</td>
</tr>

<tr ><br />
<!-- forth row of calculator -->

<td>
<input type = "button" value = " 0 " id = ""
onclick="newstring('0')">
<input type = "button" value = " N " id = ""
onclick="newstring('N')">
<input type = "button" value = " = " id = ""
onclick="eval(document.calculator.display.value= memory)">
<input type = "button" value = " + " id = ""
onclick="action1('+')">
</td>
</tr>

<tr ><br />
<!-- fifth row of calculator -->

<td>
<input type = "button" value = " &nbsp " id = "">
<input type = "button" value = " &nbsp " id = "">
<input type = "button" value = " &nbsp " id = "">
<input type = "button" value = " C " id = ""
onclick="clearCalc()">
</td>
</tr>

</table>

</body>

</form>

</html>

///////////////////////////////////////////////////////////////////////////////////////

javascript

memory = "0";
current = 0;
operation =0;
function newstring(digit)
{
current=document.calculator.display.value;
if (digit >= 0 && digit <=9)
{
if(current==0)
{
current = digit;
}
else
{
current = current + digit;
}
}

document.calculator.display.value=current;
memory= current;

}

function action1(newaction)
{
operation = document.calculator.display.value;
if (newaction == '+')
{
operation = newaction;
}
else if (newaction == '-')
{
operation = newaction;
}
else if (newaction == '*')
{
operation = newaction;
}
else if (newaction == '/')
{
operation = newaction;
}

memory= memory + operation;
document.calculator.display.value=memory ;

}
function clearCalc()
{
document.calculator.display.value=null;
num1= null;
num2 = null;
lastaction= null;
action = null;
}