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JavaScript - Form Update Depending On Which Values Were Entered
Hello,
I have a form that works out some basic math questions e.g. area etc. I run a function when a form field is updated to do the calculations, however I'd like to run a different calculation depending on which form element was updated. Is there a way to say something like: if (area1 was updated) { work out this calculation } if(area2 was updated) { work out this calculation } and so on? Thanks, Nicola Similar TutorialsHi 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 = " " + col; } Please resolve my problem Thanks Venkat.S Hello I've been struggling trying to get a small order form to work the way I want it to. Here is a link to the live page: http://www.watphotos.com/introductio...otography.html And here is the code in question: Code: <script src="js/jquery-1.4.2.min.js" type="text/javascript"></script>
<script type="text/javascript" charset="utf-8">
$(document).ready(function(){
var initial = 0
var total = 0;
var services = 0;
function addServices()
{
initial = 150
total = initial
services = 0;
$("input:checked").each(function(){
value = $(this).attr("value");
services += parseInt(value);
});
}
$(function()
{
addServices();
total += services;
$("form").before('<p class="price"></p>')
$("p.price").text("Total Price: US$" + total);
});
$("input:radio, input:checkbox").click(function () {
addServices();
total += services
$("p.price").text("Total Price: US$" + total);
});
});
</script>
I have two questions... Question 1 How can I make this piece of script act a little smarter. Look at the order form, I'm catering for up to 4 people and providing lunch for them. If they select 3 people and the spaghetti bol for lunch, it's only adding $10 where it should be adding $30. Obviously this is simple multiplication but since the values in my form are prices it makes it a little tricky. I'm guessing an onselect on the first part of the form which changes the pricing of the other items would be the way to go, but how do I do this? Question 2 The "Total Price" is placed before the <form> tag by the script. This is ok but it's not where I want it. How can I position this text elsewhere in the document? Thanks in advance! I have the following code that I wrote myself (except for the function isNumberKey). However, I don't know how to actually add the numbers together. My plan is to store the value entered in the forms as a variable, then manipulate the variables to get my final number. The final number would be stored in variable named Total and would be displayed after Total: at the bottom of my page. Could anyone help me? I can provide additional information if you need it. Code:
<HTML>
<TITLE>Magazine Prices </TITLE>
<BODY>
<SCRIPT language=Javascript>
<!--
Price = oForm.elements["price"].value;
Quantity = oForm.elements["quantity"].value;
Subtotal = oForm.elements["subtotal"].value;
Shipping = oForm.elements["shipping"].value;
function isNumberKey(evt)
{
var charCode = (evt.which) ? evt.which : event.keyCode
if (charCode > 31 && (charCode < 48 || charCode > 57))
return false;
return true;
}
//-->
</SCRIPT>
<!-- Price * Quantity = Subtotal. Subtotal value should fill in automatically in the Subtotal input field. Subtotal * Shipping = Total. //-->
<TABLE>
<TR><TD>Price: </TD><TD><INPUT id="Price" name="Price" onkeypress="return isNumberKey(event)" type="text" name="txtChar"> </TD></TR>
<TR><TD>Quantity:</TD> <TD><INPUT id="Quantity" name="Quantity" onkeypress="return isNumberKey(event)" type="text" name="txtChar"> </TD></TR>
<TR><TD>Subtotal:</TD> <TD><INPUT id="Subtotal" name="Subtotal" onkeypress="return isNumberKey(event)" type="text" readonly="readonly" name="txtChar"> </TD></TR>
<TR><TD>Shipping:</TD> <TD><INPUT id="Shipping" name="Shipping" onkeypress="return isNumberKey(event)" type="text" value="10%" readonly="readonly" name="txtChar"> </TD></TR>
</TABLE>
<b>Total: </b>
</BODY>
</HTML>
Hi, I am trying to only allow a person to enter alpha characters in this field and if they try to enter a number a pop up box will tell them they can only enter alpha characters. Can this be done? Here is my code: How would you like us to address you? ("Dear Pat" Dear <input name="SALUT" type="text" id="address2" style="color: #000000; border-left: 0px solid #008000; border-right: 0px solid #254D78; border-top: 0px solid #008000; border-bottom: 2px solid #0033CC; background-color: #EBE1BE" tabindex="5" size="15" maxlength="50" onFocus="if(this.value=='SALUT')this.value='';"> Any help would be greatly appreciated. Thanks I have a JavaScript application that needs to preserve double quote marks and apostrophes (" and ') that are entered into form fields by the user. The form data is passed through several screens using hidden fields. Right now, apostrophes work because I have the input fields coded as value="". I have not found a way for JavaScript to retrieve the field's value if double quotes are entered by the user. If I change the parameter to value='' (single quotes) then the apostrophes probably won't work. Is there a straightforward way for JavaScript to retrieve the field value containing quotes, so that I can manipulate it into a different string that can be easily passed between HTML pages? I have recently installed google custom search on a page- using the iframe selection, so I can have control over the look of the page and it isn't a google branded page. The problem is- with JS disabled, this form doesn't work. However, the option to display results on a google hosted page does work. This is very important for accessibility for this site, so what I am wanting to do is have the basic search show ONLY if there is no JS enabled. But for everyone else- it displays as I intended. JS isn't my bread and butter, but I think it's the tool to use here. Could someone offer some guidance? Main Form Code: <div style="float:right">
<script type="text/javascript" src="/js/main.js"></script>
<div id="searchBox" class="searchBoxTopLevelNav">
<form name="search" id="search" action="search.php?">
<label for="q" style="display:none";>Site Search</label>
<input onclick="javascript:SearchClear(this);" onkeypress="javascript:OverrrideForms(this);" name="q" id="q" autocomplete="off" class="GoogleSearchTextBox" value="Search" />
<input name='btnG' onclick="javascript:SearchGoogle($(this).prev('input.GoogleSearchTextBox:first'));return false;" type='image' value='Search' src='../img/icons/search-gray.gif' alt='Go' align="top"/>
</form>
</div>
Form to display only if JS is not enabled Code: <form action="http://www.google.com/cse" id="cse-search-box">
<div>
<input type="hidden" name="cx" value="#" />
<input type="hidden" name="ie" value="UTF-8" />
<input type="text" name="q" size="31" />
<input type="submit" name="sa" value="Search" />
</div>
</form>
<script type="text/javascript" src="http://www.google.com/cse/brand?form=cse-search-box&lang=en"></script>
I'm still a relative noob and i'm wondering if anyone can help. items use a structured form, so any item in that category will display on the same form when selected i want to have the save button run its normal save on all items except 1 specific item - on the 1 item i want to have it function as a save as copy (while still having "save" as its visible text), the current code set in a drop down list is $options[] = array( 'text' => 'JSAVE', 'task' => $this->getName() . '.save'); $options[] = array( 'text' => 'Save as new project', 'task' => $this->getName() . '.save2copy', 'options' => array('access' => ($this->item->id > 0))); can anyone offer any suggestions? really stuck on this one From my main page, I have a dropdown-login box. Is it possible login form go to my user's control panel if the login was successful, or go to the login page if it's not? Ideally, I don't want to use a re-direct. Do I need to use ajax? Thank you! 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. I am thinking this should be fairly easy but yet I am not getting far. I want to have a form with a single text imput field for a zip code. Depending on which zip code the user enters will determine which url they will be sent to. If they enter a zip code which is not in the script, they would be sent to a default url. I am also assuming this can be accomplished with javascript. Any help is greatly appreciated. Hello Friends In my jsp,Struts project i am using the javascript calendar control for selecting the date and by using function calcage() i am calculating the age of the user but problem occurs when the page refreshes OR when user updated the other values such as name ,contact no. Then the value of the age is set as 0 in the textfield as 0 So can you please tell me why this problem occurs And please give me solution Thanks Greetings I have a textarea on my page and I wonder if its possible for a visitor to type in something in the textarea and then it will store in XML is it possible? Best Regards Obsivus Hi, I have a form where dob is generated using 3 select boxes, 1 for day, month and year. My output needs to be in the form dob=dd-mm-yyyy rather than day=dd, month=mm and year=yyyy. It has been suggested that i do the following: "On submit button click, use JS to create a hidden input (Q5) in the form and assign its value, then disable the day, month, and year fields so they are not submitted." Does anyone know how to do this? Hi, The following code is supposed to display and hide fields when clicking on radio buttons which is does correctly, it also gives the fields that are hidden a value so that it passes validation. T The problem is that when the user moves from one field to the next, it deletes the value that they have just entered. :S Any ideas why this might occur? Thanks! Code: <script language="javascript" type="text/javascript">
function showHideDivs(){
var category = '';
for(i=0; i < oRadBtns.length; i++){
if(oRadBtns[i].checked){
category = oRadBtns[i].value;
}
}
switch (category){
case 'empresa':
document.getElementById("empresa_nombre").value = "";
document.getElementById("contacto").value = "";
document.getElementById("nombre").style.display = "none";
document.getElementById("apellido").style.display = "none";
document.getElementById("company").style.display = "block";
document.getElementById("contact").style.display = "block";
document.getElementById("firstname").value = "nombre";
document.getElementById("lastname").value = "apellido";
break;
case 'particular':
document.getElementById("firstname").value = "";
document.getElementById("lastname").value = "";
document.getElementById("nombre").style.display = "block";
document.getElementById("apellido").style.display = "block";
document.getElementById("company").style.display = "none";
document.getElementById("contact").style.display = "none";
document.getElementById("empresa_nombre").value = "empresa";
document.getElementById("contacto").value = "contacto";
break;
}
}
window.onload=function(){
oRadBtns = document.getElementById('dmsfrm').getElementsByTagName('input');
for(i=0; i < oRadBtns.length; i++){
oRadBtns[i].onclick = showHideDivs;
}
showHideDivs();
}
</script>
Code: <div class="radio_element">
<input type="radio" value="empresa" class="radio" id="empresa" name="categoria" <?php echo ($leadsEngine->getElementValue('categoria')!='particular')?'checked="checked"':'' ?> />
<span class="<?PHP if($leadsEngine->hasError('categoria')){echo 'error';} ?> ">Empresa</span>
</div>
<div class="radio_element">
<input type="radio" value="particular" class="radio" id="particular" name="categoria" <?php echo ($leadsEngine->getElementValue('categoria')=='particular')?'checked="checked"':'' ?> />
<span class="<?PHP if($leadsEngine->hasError('categoria')){echo 'error';} ?> ">Particular</span>
</div>
</div>
Hey all, Okay, Here is what i would like to do. I have a calculator he http://www.nico-online.co.uk/calculator/calc1.html which after some help from Dormilich - got working! Now, I would like to set up some conditions, so if the use selected 'Mountainbike' then, the script will perform a different calculation to if they select the 'Rennrad' option. Okay, so I was thinking an If..else..if..else statement would probably be best after reading up This is what I have come up with: Code:
<script language="JavaScript">
function Framesize()
{
var a = parseFloat(BikeSizer.Insleg.value);
if(BikeSizer.Biketype.value = "Mountainbike")
{
b = (a * 0.572);
c = Math.round(b);
BikeSizer.FramesizeCM.value = c;
d = (a * 0.226);
e = Math.round(d);
BikeSizer.FramesizeInch.value = e;
}
else if (BikeSizer.Biketype.value = "Trekking-, Reise- oder Cityrad")
{
b = (a * 5);
c = Math.round(b);
BikeSizer.FramesizeCM.value = c;
d = (a * 5);
e = Math.round(d);
BikeSizer.FramesizeInch.value = e;
}
else{
b = (a * 10);
c = Math.round(b);
BikeSizer.FramesizeCM.value = c;
d = (a * 10);
e = Math.round(d);
BikeSizer.FramesizeInch.value = e;
}
}
</script>
So, I'm not too sure if I can set the Menu values as recongnisable values! Here are the values I have: <select name="Biketype" style="font-size:11px;"> <option>Mountainbike</option> <option>Trekking-, Reise- oder Cityrad</option> <option>Rennrad</option> </select> Anyone out there offer any insight? Am I going horribly wrong somewhere? Apologies for the stupidness , I am quite new to JS! Thanks in advance Hi there, I'm absolute newbie in javascript, so the question may look not worth asking for you. Sorry for that. My situation is like that: I want to make a preview of form data using javascript. After the button "preview" is clicked I start showing div dialog which should contain data entered by users. The problem is that because my div dialog is coded in the same page as form I can get only default values. It means - after making some changes, they are not visible. To get and print the value of input I use this code: Code: <script type="text/javascript">
mytext = document.getElementById('name').value;
document.write(mytext);
</script>
How it would be possible to update the values on "on click" event. Thank you very much for considering this question. Hi, I'm having a bit of trouble with this here... Before I submit the form with JS I update an input field with js like this: Code: Code: document.getElementById('IC_Checksum').value = data;
imaginaryform.submit();
The problem is that the updated value is not sent along with the post data. Instead the old value is sent along. When i submit the form with a button afterwards though (not auto submit after the value is set), then the value is sent along fine. But that's not how I want it to work... Can anyone tell me how I can send the value that I'm setting with JS along with the post data like this? I have 4 text boxes that are supposed to load 4 seperate values of data from one field in one table from a database. The field is called interface_cropsettings (from the interface table) and these values have been concatenated and comma seperated in this field. Code:
<TR>
<TD WIDTH="350" CLASS="tabledata"><INPUT TYPE="TEXT" SIZE="55" NAME="txtInterfaceXPosition" maxlength="10" <CFIF IsDefined("isEdit")>VALUE="#qryEditInterface.interface_cropsettings#"></CFIF></TD>
</TR>
<TR>
<TD WIDTH="350" CLASS="tabledata"><INPUT TYPE="TEXT" SIZE="55" NAME="txtInterfaceYPosition" maxlength="10" <CFIF IsDefined("isEdit")>VALUE="#qryEditInterface.interface_cropsettings#"></CFIF></TD>
</TR>
<TR>
<TD WIDTH="350" CLASS="tabledata"><INPUT TYPE="TEXT" SIZE="55" NAME="txtInterfaceCropHeight" maxlength="10" <CFIF IsDefined("isEdit")>VALUE="#qryEditInterface.interface_cropsettings#"></CFIF></TD>
</TR>
<TR>
<TD WIDTH="350" CLASS="tabledata"><INPUT TYPE="TEXT" SIZE="55" NAME="txtInterfaceCropWidth" maxlength="10" <CFIF IsDefined("isEdit")>VALUE="#qryEditInterface.interface_cropsettings#"></CFIF></TD>
</TR>
Once the form is filled out and saved, the data is inserted into the database and the values from these 4 text boxes are concatenated, comma seperated and inserted into that one field correctly. (Example) If the 4 text boxes have the following values: X Position = 12.34 Y Position = 56.78 Crop Height = 250 Crop Width = 500 in the database field they become: 12.34,56.78,250,500 However, if the form is closed and then re-opened, each text box displays the entire database field rather then each value seperated in the corresponding text box. (Example) All 4 text boxes display this: 12.34,56.78,250,500 I already know why the data appears like this in the form, my problem is that I'm not sure how to write the javascript to seperate the values into the correct corresponding fields, assuming javascript is what I should be using! Can anyone help me out with this?? Also, this is kind of irrelevant but just in case you're wondering, this form is part of a cold fusion application! I am having some trouble trying to fix my math equation to calculate the total rent by aquiring values from my form fields. Converting the date fields to days and finding the number of days via two date fields is mainly where I am having trouble. Also, I am trying to have a window pop up before submission but the onclick event does not seem to function properly. Any suggestions would be greatly appreciated. Thank you. Below is the math equation I have come up with: Code: //calculate days from date field
function calcTotal(date1, date2) {
//assign variables
var equip = parseFloat(document.forms[0].equipment.value)
var pDate = parseFloat(document.forms[0].pickupDate.value)
var pHours = parseFloat(document.forms[0].pickupHours.value)
var pMinutes = parseFloat(document.forms[0].pickupMinutes.value)
var rDate = parseFloat(document.forms[0].returnDate.value)
var rHours = parseFloat(document.forms[0].returnHours.value)
var rMinutes = parseFloat(document.forms[0].returnMinutes.value)
// The number of milliseconds in one day
var ONE_DAY = 1000 * 60 * 60 * 24
// Convert both dates to milliseconds
var date1_ms = rDate.getTime()
var date2_ms = pDate.getTime()
// Calculate the difference in milliseconds
var difference_ms = Math.abs(date1_ms - date2_ms)
//calculate total cost and diplay in window.confirm() dialog box
var pTime = pHours + pMinutes;
var rTime = rHours + rMinutes;
var total = (((difference_ms/ONE_DAY) - 1) * 24) * equip + ((rTime + (24 - pTime)) * equip);
var OK = window.confirm(" The total rental cost is $" + total + "\n Click OK to accept, Cancel to decline");
if (OK) {return true}
else {return false}
}
Below is the body section of the form: Code: <input type = "submit" name = "submit" value = "Submit Reservation" onclick = "calcTotal()"/> I want to loop through a form containing various fields and replace them with values I have in a JS object. E.g. (1) <form id="theform"> <input type="text" name="field_1" value="" /> <input type="checkbox" name="field_2" value="" /> </form (2) object.field_1 = "Dave"; object.field_2 = ""; // empty as not checked, else holds value of checked one -- The problem is: what about checkboxes and <select> drop downs, and radios?? Is there a script like this around as I'm guessing this could be useful for Ajax to populate input boxes in some situations (depending on the content etc.) so I'm guessing I'm not the only one who needs this? |
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