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JavaScript - Help Creating Unit Converter
Hi all --
I realize this is probably pretty simple, but it's been a while since I did any Javascripting, and things have changed a great deal. My apologies if I sound a bit clueless. I need to create a conversion tool. On one side of the tool are 4 form boxes. On the other, just text (not in form boxes). Under the covers, I have formulas for converting the numbers -- mostly basic math functions. So, the user types in numbers, clicks convert and the text changes. For some reason, I'm having a hard time getting this to go. How can I get the results of these calculations to show up as text within a DIV tag and not inside a form element? There are lots of examples of getting these calculations to appear within form boxes, but not within DIVs. Any examples would be greatly appreciated. This page is already using the Dojo toolkit for some other functionality, is this something I could leverage here to build my Javascript? Thanks in advance for your patience. Similar TutorialsI am trying to make a unit converter with two dropdown boxes, two textfields and a button. I want to enter a number into the first textfield, select a unit option, then select another appropriate unit option based on the first selection, press the button and get the result in the second textfield. What would be the best approach for this. So far I have: <html> <head> <script type="text/javascript"> function convertUnit () { // convert pound to kilogram document.unitForm.toField.value = document.unitForm.fromField.value / 2.2; // convert kilogram to pound document.unitForm.toField.value = document.unitForm.fromField.value * 2.2; // convert inch to centimeter document.unitForm.toField.value = document.unitForm.fromField.value / 2.54; // convert centimeter to inch document.unitForm.toField.value = document.unitForm.fromField.value * 2.54; } </script> </head> <body style="background-color:lightgray"> <form action="" name="unitForm"> <input type="text" name="fromField" onfocus="this.form.fromField.value=''; style.background='lightyellow';" onblur="style.background='white';" /> <select name="fromList" > <option value="" selected="selected">Unit</option> <option id="fromPound" value="2.2">lb</option> <option id="fromKilogram" value="1.0">kg</option> <option id="fromInch" value="1.0">in</option> <option id="fromCentimeter" value="2.54">cm</option> </select> <input type="button" value="Convert" onclick="convertUnit()" /> <input type="text" name="toField" readonly="readonly" /> <select name="toList"> <option value="" selected="selected">Unit</option> <option name="toKilogram" id="toKilogram" value="1.0">kg</option> <option name="toPound" id="toPound" value="2.2">lb</option> <option name="toCentimeter" id="toCentimeter" value="2.54">cm</option> <option name="toInch" id="toInch" value="1.0">in</option> </select> <input type="reset" value="Reset" /> </form> </body> </html> Hello, I've been reading my JS book, have done a 'Degrees Converter' which converts fahrenheit into centigrade. There is a prompt box which automatically loads when the website is loaded. I am pressuming this is because I have my script in the body. I have a question if anybody could possibly help me out. How do I get my script as a link? To explain a little better, I wanted to put the words 'Degrees Converter' onto my page(as a link), so that when people click the link, it loads up the prompt box. I'm very new to JavaScript, so if anyone could help me out it would be a great help. Thank you very much. Hi I have the following currency converter code which works fine, but I need to make it possible for someone else to edit the euro price using a visual editor such as contribute. Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>
<script language='javascript'>
exchRate = 1.13;
function getUKP(price) {
document.write('(£' + Math.round(price / exchRate) + ')');
}
</script>
</head>
<body>
<strong>€526</strong> <script type="text/javascript">getUKP('526');</script><br /><br />
<strong>€1999</strong> <script type="text/javascript">getUKP('1999');</script>
</body>
</html>
This code requires someone to change the figure in the javascript as well as the html. I guess I need to somehow automatically pick up the numeric characters only from the html which appear on the same line of code... or perhaps there's an easier way.? Any help would be much appreciated. Thanks Hi all, I have a problem about my converter.Why when I'm clicking on the keypad displayed in the form,it doesn't display the result.But when clicking on the keypad on the keyboard,it works?.Plz help me with this trouble.Here are my code. <-html-> <html> <head> <title>Currency Converter</title> <link rel="stylesheet" href="../css/cal.css" type="text/css" > <script type="text/javascript" src="../cal.js"></script> </head> <body> <h2>Currency Converter<h2> <table id="table1"> <form id="currconverter"> <tr> <td>Convert<br>from:</td> <td><input type="text" id="amount" value="" size="17" onChange="convertCurr()"></td> <td> <select id="from_select"> <option value="GBP" selected="selected">Pound Sterling</option> <option value="USD">US Dollar</option> <option value="MUR">Mauritian RS</option> <option value="EUR">Euro</option> <option value="JPY">Yen</option> </select> </td> </tr> <tr> <td>Convert<br>to:</td> <td><input type="text" id="result" value="" size="17" readonly="readonly" onchange="convertCurr();"></td> <td> <select id="to_select"> <option value="GBP">Pound Sterling</option> <option value="USD">US Dollar</option> <option value="MUR" selected="selected">Mauritian RS</option> <option value="EUR">Euro</option> <option value="JPY">Yen</option> </select> </td> </tr> </form> </table> <br> <table cellpadding="0" cellspacing="5" border="1" align="center" bgcolor="AABBCC"> <form name="cal"> <tr> <td><input type="button" value="7" onClick="currconverter.amount.value += '7'"></td> <td><input type="button" value="8" onClick="currconverter.amount.value += '8'"></td> <td><input type="button" value="9" onClick="currconverter.amount.value += '9'"></td> </tr> <tr> <td><input type="button" value="4" onClick="currconverter.amount.value += '4'"></td> <td><input type="button" value="5" onClick="currconverter.amount.value += '5'"></td> <td><input type="button" value="6" onClick="currconverter.amount.value += '6'"></td> </tr> <tr> <td><input type="button" value="1" onClick="currconverter.amount.value += '1'"></td> <td><input type="button" value="2" onClick="currconverter.amount.value += '2'"></td> <td><input type="button" value="3" onClick="currconverter.amount.value += '3'"></td> </tr> <tr> <td><input type="button" value="0" onClick="currconverter.amount.value += '0'"></td> <td><input type="button" value="." onClick="currconverter.amount.value += '.'"></td> <td><input type="reset" value="C" OnClick="currconverter.amount.value = ''"></td> </tr> </form> </table> </body> </html> <-javascript-> function convertCurr() { var amount = parseFloat(document.getElementById("amount").value); var form = document.getElementById("currConverter"); var fromSelect = document.getElementById("from_select"); var toSelect = document.getElementById("to_select"); var result= document.getElementById("result"); var currencyTo = []; switch (fromSelect.value) { case "GBP": currencyTo = [1, 1.61, 46.91, 1.23, 128.89]; break; case "USD": currencyTo = [1.62, 1, 28.90, 0.76, 79.84]; break; case "MUR": currencyTo = [1.02, 0.03, 1, 0.03, 0.00]; break; case "EUR": currencyTo = [0.81, 1.31, 38.01, 1, 104.47]; break; case "JPY": currencyTo = [0.01, 1.25, 0.00, 0.96, 1]; break; default: alert("It broke."); } result.value = (amount * currencyTo[toSelect.selectedIndex]).toFixed(2); } Hello all. I'm so glad i found this forum!!! This looks like a great coding community. This will be my First Post. I was wondering if you guys can help me with my weight converter. I cant seem to make it work properly on my site. here is the code im using: <p class="about">Convert weight measurements between U.S./Imperial and SI (Metric) units<br /> Type your value in a box, click the <input onclick="alert('Not this button!')" type="button" name="test_bt" value="Go!" /> and all unit conversions in the same category will be calculated.</p> <form action=""> <table width="500" border="1" cellspacing="0" cellpadding="4"> <tbody> <tr bgcolor="#0066ff"><th class="headings" colspan="3" bgcolor="#1765BB">SI (Metric)</th></tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78" width="288">Tonne</td> <td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="mTon" size="15" /></td> <td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(mTon.value)) compute(this.form,mTon.name,weight_data)" type="button" name="mTon_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78" width="288">Kilogram (kg)</td> <td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="mKilogram" size="15" /></td> <td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(mKilogram.value)) compute(this.form,mKilogram.name,weight_data)" type="button" name="mKilogram_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78" width="288">Gram (g)</td> <td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="mGram" size="15" /></td> <td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(mGram.value)) compute(this.form,mGram.name,weight_data)" type="button" name="mGram_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78" width="288">Milligram (mg)</td> <td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="mMilligram" size="15" /></td> <td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(mMilligram.value)) compute(this.form,mMilligram.name,weight_data)" type="button" name="mMilligram_bt" value="Go!" /></td> </tr> <tr><th class="headings" colspan="3" bgcolor="#103e78"> </th></tr> <tr bgcolor="#0066ff"><th class="headings" colspan="3" bgcolor="#1765BB">Troy weight</th></tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78" width="288">Pound (lb t)</td> <td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="troyPound" size="15" /></td> <td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(troyPound.value)) compute(this.form,troyPound.name,weight_data)" type="button" name="troyPound_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78" width="288">Ounce (oz t)</td> <td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="troyOunce" size="15" /></td> <td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(troyOunce.value)) compute(this.form,troyOunce.name,weight_data)" type="button" name="troyOunce_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78" width="288">PennyWeight (dwt)</td> <td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="troyDWT" size="15" /></td> <td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(troyDWT.value)) compute(this.form,troyDWT.name,weight_data)" type="button" name="troyDWT_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78" width="288">Grain<br /> Same as Avoirdupois grain</td> <td class="headings" align="right" bgcolor="#103e78" width="130"><input type="text" name="troyGrain" size="15" /></td> <td class="headings" bgcolor="#103e78" width="57"><input onclick="if (checkNum(troyGrain.value)) compute(this.form,troyGrain.name,weight_data)" type="button" name="troyGrain_bt" value="Go!" /></td> </tr> <tr bgcolor="#6699ff"> <td class="headings" colspan="3" bgcolor="#103e78"> </td> </tr> <tr bgcolor="#0066ff"><th class="headings" colspan="3" bgcolor="#1765BB">Avoirdupois weight</th></tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78">British ("long") ton</td> <td class="headings" align="right" bgcolor="#103e78"><input type="text" name="briTon" size="15" /></td> <td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(briTon.value)) compute(this.form,briTon.name,weight_data)" type="button" name="briTon_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78">US ("short") ton</td> <td class="headings" align="right" bgcolor="#103e78"><input type="text" name="usTon" size="15" /></td> <td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(usTon.value)) compute(this.form,usTon.name,weight_data)" type="button" name="usTon_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78" height="42">British ("long") hundredweight (cwt)</td> <td class="headings" align="right" bgcolor="#103e78" height="42"><input type="text" name="briCWT" size="15" /></td> <td class="headings" bgcolor="#103e78" height="42"><input onclick="if (checkNum(briCWT.value)) compute(this.form,briCWT.name,weight_data)" type="button" name="briCWT_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78">US ("short") hundredweight (cwt)</td> <td class="headings" align="right" bgcolor="#103e78"><input type="text" name="usCWT" size="15" /></td> <td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(usCWT.value)) compute(this.form,usCWT.name,weight_data)" type="button" name="usCWT_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78">Stone</td> <td class="headings" align="right" bgcolor="#103e78"><input type="text" name="briStone" size="15" /></td> <td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(briStone.value)) compute(this.form,briStone.name,weight_data)" type="button" name="briStone_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78">Pound (lb)</td> <td class="headings" align="right" bgcolor="#103e78"><input type="text" name="avdpPound" size="15" /></td> <td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(avdpPound.value)) compute(this.form,avdpPound.name,weight_data)" type="button" name="avdpPound_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78">Ounce (oz)</td> <td class="headings" align="right" bgcolor="#103e78"><input type="text" name="avdpOunce" size="15" /></td> <td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(avdpOunce.value)) compute(this.form,avdpOunce.name,weight_data)" type="button" name="avdpOunce_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78">Dram (dr)</td> <td class="headings" align="right" bgcolor="#103e78"><input type="text" name="avdpDram" size="15" /></td> <td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(avdpDram.value)) compute(this.form,avdpDram.name,weight_data)" type="button" name="avdpDram_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" bgcolor="#103e78">Grain</td> <td class="headings" align="right" bgcolor="#103e78"><input type="text" name="avdpGrain" size="15" /></td> <td class="headings" bgcolor="#103e78"><input onclick="if (checkNum(avdpGrain.value)) compute(this.form,avdpGrain.name,weight_data)" type="button" name="avdpGrain_bt" value="Go!" /></td> </tr> <tr bgcolor="#0066ff"> <td class="headings" colspan="2" align="center" bgcolor="#103e78"><input onclick="resetAll(this.form)" type="button" name="res7" value="Clear all numbers" /></td> <td class="headings" bgcolor="#103e78"> </td> </tr> </tbody> </table> <p> </p> </form> <p> </p> and help will be greatly appreciated. Hey guys. I am in an introductory computer science class and I am having trouble writing JavaScript code for a currency converter. I can get it to where it spits out numbers, but its always the same numbers. I think there's something wrong in the calculations part of my code but I can't figure it out. I am posting it below, and any help would be greatly appreciated. Thank you. <html> <head> <title>CURRENCY CONVERTER</title> <script language="JavaScript"> function converting() { with (document.conversions) { if (unit[1].selected) { var result = eval(unit.value*0.974); convertedValue.value = result; } // end if if (unit[2].selected) { var result = eval(unit[2].value*0.492); convertedValue.value = result; } // end if if (unit[3].selected) { var result = eval(unit[3].value*0.706); convertedValue.value = result; } // end if } // end with } // end function converting </script> </head> <form name = "conversions"> <table border=6 bgcolor ="yellow"> <tr> <td><font color="red" size=6>Enter amount in U.S. $:</font></td> <td><input type="text" name="inUnit" size = 4></td> </tr> <tr> <td><font color="red" size=6>Select target unit:</font> <td><select name="unit"> <option value="Select Currency" selected>Choose one... <option value="1">Canadian Dollars <option value="2">British Pounds <option value="3">Euros </select> <td><input type="button" value="Convert" onclick="converting()"> </tr> <tr> <td><font color="green" size=6>Converted Value:</font> <td><input type="text" name="convertedValue" size = 4> <td><input type="reset" value="Reset"> </tr> </table> </form> </body> </html> Hello, I am having trouble with a javascript length converter that I got from http://www.javascriptkit.com/script/...onverter.shtml It is working fine in dreamweaver, but when it goes live on my site, the calculations do nothing. I can see everything in the drop down menus, but when i click the "to" button, nothing happens. I got the following errors from chrome when activating any of the calculation functions. I'm wondering if anyone here can help me decipher these 1. Uncaught TypeError: Cannot read property 'from_unit' of undefined 1. convert_unitDefault.aspx:459 2. (anonymous function)Default.aspx:482 3. onchangeDefault.aspx:483 1. Default.aspx:459Uncaught TypeError: Cannot read property 'from_unit' of undefined 1. convert_unitDefault.aspx:459 2. (anonymous function)Default.aspx:496 3. onchangeDefault.aspx:497 1. Default.aspx:459Uncaught TypeError: Cannot read property 'from_unit' of undefined 1. convert_unitDefault.aspx:459 2. (anonymous function)Default.aspx:516 3. onclickDefault.aspx:517 Hi, I need to create a currency converter using a drop down menu. Firstly i needed to do a regular expressions check to make sure only numerics are entered and I got that. The one thing im pretty confused on is how to do the calculations in the actual function. Ive popped the code below, and if anyone could give me some hints on how to get the data from the drop down menu and calculate it properly that would be awesome. Thanks. -oh and i know all my coding is here but i think its relevent that you can view it all. Code: <html>
<head>
<style type ="text/css">
@import url(style.css);
</style>
<script type="text/javascript">
function convert()
{
var OK = true;
var inDollar= document.getElementById('dollars').value;
var regex= /^\d{1,}$/;
if (!regex.test(inDollar))
{
OK=false;
alert('Australian Dollars must be entered as numeric with no decimal places');
}
return OK;
var rate= country.conversion.value;
if (document.getElementByID('conversion').selectedIndex == 0)
{
var rate= country.conversion.value;
var convert = inDollar*rate;
alert('$'+inDollar+' converts to'+rate+' US Dollars');
}
if (document.getElementByID('conversion').selectedIndex == 1)
{
var rate= country.conversion.value;
var convert = inDollar*rate;
alert('$'+inDollar+' converts to'+rate+' Euro');
}
if (document.getElementByID('conversion').selectedIndex == 2)
{
var rate= country.conversion.value;
var convert = inDollar*rate;
alert('$'+inDollar+' converts to'+rate+' Yuan');
}
if (document.getElementByID('conversion').selectedIndex == 3)
{
var rate= country.conversion.value;
var convert = inDollar*rate;
alert('$'+inDollar+' converts to'+rate+' Yen');
}
}
</script>
</head>
<body>
<h1>Currency Page</h1>
<form>
Australian Dollars:<input type="text" name="dollars" id="dollars" />
<br />
Convert to:
<select id='conversion' name='country'>
<option value=".73">US Dollars</option>
<option value=".62">Euro</option>
<option value="5.8">Chinese Yuan</option>
<option value="78.5">Japanese Yen</option>
</select>
<br />
<input type="button" value="Convert" onClick="convert()" />
</form>
</body>
</html>
I can only seem to find really complicated ones online, nothing simple which i think this is. Thanks I'm currently attempting to make a unit conversion tool. I'd like for the user to select which unit to start and which unit to convert too. EX: 1 foot comes out to 12 inches. So far it's not going well. I have two list boxes, named "firstmeasure" and "secondmeasure". For the purpose of this post we will use only 3 different unit in the list boxes, centimeters, feet, and inches. I also have two text boxes used to show the output and for the user to put in a number to convert. And of course, a button that calls the function (I'd prefer it to do the function automatically, but I'll get to that later). I'm trying to use variable arrays and using the value of the list box options to define which value the array will use. Then in the function I'm trying to use a switch/case statement to allow it to figure out which numbers to plug into an equation. My problem is that it seems to automatically go to the last case option regardless of what the list box is. This is the form that in the HTML file: Code: <form action="" name="lengthform" id="lengthform" >
<p>
<label >Select first measurement</label>
<br/>
<select id="firstmeasure" name="firstmeasure" >
<option value="1">Centimeter</option>
<option value="2">Feet</option>
<option value="3">Inch</option>
</select>
<input type="text" id="input" name="input" value="1" />
<br/>
<br/>
<label >Select Second measurement</label>
<br/>
<select id="secondmeasure" name="secondmeasure" >
<option value="1">Centimeter</option>
<option value="2">Feet</option>
<option value="3">Inch</option>
</select>
<input type="text" id="output" name="output" />
</p>
<input type="button" onclick="calculate()" value="Convert!" />
</form>
This is whats in the Java file: Code: var centimeters1 = new Array() ;
centimeters1["1"] = "1" ; //centimeters
centimeters1["2"] = "0.032808399" ; //feet
centimeters1["3"] = "0.393700787" ; //inches
var feet1 = new Array() ;
feet1["1"] = "30.48" ; //centimeters
feet1["2"] = "2" ; //feet
feet1["3"] = "12" ; //inches
var inches1 = new Array() ;
inches1["1"] = "2.54" ; //centimeters
inches1["2"] = "0.0833333333" ; //feet
inches1["3"] = "3" ; //inches
function calculate() {
var measure1 = document.lengthform.elements["firstmeasure"] ;
var measure2 = document.lengthform.elements["secondmeasure"] ;
var A = document.lengthform.input.value ;
var B ;
var C ;
switch (measure1.value){
case "1" :
B = centimeters1[measure2.value] ;
C = A * B
document.lengthform.output.value = C
case "2" :
B = feet1[measure2.value] ;
C = A * B
document.lengthform.output.value = C
case "3" :
B = inches1[measure2.value] ;
C = A * B
document.lengthform.output.value = C
}//end switch
}//end function
So, measure1 reads the value of the first list box, and measure 2 reads the value of the second list box. I tried using a switch case statement instead of writing a ton of if statements. Which I also tried and it gave me the same problem. If there is a much better way to do a conversion tool, than I would love to learn how. Any help on fixing this seemingly easy problem would be great. Edit: Do I have to use an "int" variable in the switch statement? I'm using Adobe Dreamweaver and it won't allow to me to create a variable using "int", it just gives me a syntax error. I imagine this would be very simple for someone who knows javascript. I want to have three fields. First field is "posted speed limit", second field is "actual speed" and third field will be the output field. All the script needs to do it subtract the posted speed from the actual speed and add a ZERO to the end; which is the amount of the speeding ticket. The minimum fine is $100, however. So, 5 miles over the speed limit would be $100 (minimum value) 15 miles over the speed limit would be $150 (add a zero) 35 miles over the speed limit would be $350. etc. I know very little Javascript, if anyone could help me out with this, I'd appreciate it. Thanks, Sean i need to create a div as i click down and move while pressing the mouse button and the div will increase in size as i move the mouse while still pressing the mouse button. how can i accomplish this task Hi i am looking to create a js pop up to display an amazon widget which relates to an item on my page. so i've found this on the net http://blazonry.com/javascript/windows.php but im not very javascript minded and dont know where to start. so i have tried this Code: <img src="images/listen.png" border="0" alt="Preview Songs" title="Preview Songs" onclick="window.open("song_preview.php?id=<?php echo $row['ASIN']?>","Window1","menubar=no,width=430,height=360,toolbar=no");" />
but it loads a blank pop up at the same time the page loads up and not when an image is clicked? plus when i first loaded the page it said pop up blocked which sucks!! on the example i didnt get that, any reason why??? any help is appreciated thanks Luke hi i am new to javascript. i make a mcq quiz website in one of server side script. now for that website i want to make count down timer so when that quiz starts the user will have 5 minutes to complete that quiz if use does not able to complete quiz in given time then quiz should disable and shows the user score how can i achieve this so now that i figured out how to add items in an array and i got the percent of each item from the total i have a table that looks something like this...(sorry the alignment is screwed up) Name Votes Percent 1.2.3.4.5.6.7.8.9.10..... Bob 45 14% Bill 86 26% George 122 37% Sam 79 24% the numbers One through Ten represent empty columns (i technically need 100 but i didnt write that out yet... so what i am trying to do is initially take the number i get from the percentage and fill in the amount of cells with a certain color.... so 14% would fill 14 of 100 cells..and this would create a bar graph..In theory I know how it should work I just can get any of the right syntax..here is the code i am working with... Code: var votes = new Array();
votes[0] = 45;
votes[1] = 86;
votes[2] = 122;
votes[3] = 79;
var ppl = new Array();
ppl[0] = "Bob";
ppl[1] = "Bill";
ppl[2] = "George";
ppl[3] = "Sam";
//var party = new Array();
//party[0] = "(D)";
//party[1] = "(R)";
//party[2] = "(I)";
//party[3] = "(G)";
function getPercent(){
var theSum = 0;
for(var i = votes.length;i--;)
{
theSum += votes[i]
}
for(i=0;i<ppl.length;i++)
{
document.write("<tr><td>"+ppl[i]+"</td><td>");
document.write(votes[i]+"</td><td>");
var pct = document.write(Math.round(votes[i]/theSum*100)+"%"+"</td></tr>");
}
//var total = document.write(numbers[numbers.length-1]); *property to get array length
}
function createBar(){
}
thanks in advance for any help! Hi everyone, I want the source code of creating forum in JavaScript language.ASAP
Hey All, I've currently working on making a calendar for my website. How do I go about creating a password for it? So that the admin can add events to it. Cheers Guys!!! I am writing a function that alerts a user that they did not enter a password what change do I need to make to this code to correct my issue it isn't doing anything [CODE] <script language = Javascript> function validate(){ if(document.login.pw.value==""); alert("Your id and or password is incorrect"); return false; } else return true; } </script> [CODE] Alright I have never really created a class before and I have to for a project. This is what I have so far and I will try to explain the requirements I am looking for thoroughly and what problems I am having. Code:
<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<script language="javascript" type="text/javascript">
function clock () { //Object Constructor
this.setT = function() { //Method Set Time
//Properties
this.currentTime = new Date ( );
this.currentHours = this.currentTime.getHours ( );
this.currentMinutes = this.currentTime.getMinutes ( );
this.currentSeconds = this.currentTime.getSeconds ( );
}
clock.prototype.displayTime = function () {
clock.setT
}
}
</script>
<body>
<form name="form1">
<p>
<input type="text" rows=7 cols=60 name="currentTime">
<br>
<input type="button" value="Set Time" onClick="clock.displayTime();">
<br>
<input type="button" value="Display Time" onClick="currentTime.value= completeTime;">
<br>
<input type="reset" value="Reset">
</p>
</form>
</body>
</html>
The clock class contains: Three Properties: Hours Minutes, Seconds Two Methods setTime (which uses date class to get current time) Must be defined in the constructor displayTime (returns a string displaying current time) Must be defined as a prototype property of constructor The below is a very rough outline, and probably not correct. I've been reading up on objects for the last few hours and can't be very sure of anything yet. Code: function clock() {
this.currentTime = new Date ( );
var currentHours = currentTime.getHours ( );
var currentMinutes = currentTime.getMinutes ( );
var currentSeconds = currentTime.getSeconds ( );
this.setTime = function() {
}
}
clock.prototype.displayTime = function ( ) {
}
I guess my biggest problem now is the outline. Any help would be great hopefully once i get what goes where i can actually start writing the code. I already have the full code to write a basic clock just like this but it doesn't use classes or any of this. I have searched and scoured the web looking for a script like this. I have found different scripts that do certain aspects of what I am looking for, but not ONE that does it all. I am hoping you can help bring my search to an end! I need a script that when a user tries to leave a page, either by typing in a URL in the address bar or clicking an external link they get a Javascript (not pop up window) dialog box asking if they would like to complete a survey. If they click OK they are then redirected to the survey page. If they click cancel it allows them to go on their way to the external link. It needs to be able to decipher between internal and external links. The script needs to work with both IE and FF. This is a must. Safari would be a plus. I would like, BUT IS IN NO WAY A NECESSITY, for the script to also be cookie based in that the user doesn't see it if they've seen it within 7 or 14 days. I really hope you all can help me here as I am lost! If you need any other info from me please let me know! |
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