Quick Form / Checkbox Disable

Jul 6, 2006

I've got the following code being used to make a checkbox selected and readonly when a radio button value is selected:

document.myForm.valueName.checked = true;
document.myForm.valueName.disabled = true;

However when submitting the form values in email, the value of the checkbox won't submit with the checkbox value being disabled (if I comment out that second line, it works). Of course, I don't want the value able to be unselected.

Any suggestions? Can I make it readonly instead?

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Checkbox To Enable/disable Form

Feb 25, 2004

I have a checkbox at the top of the page, and then I have a form full of text fields etc, called 'frmEnquiry'.

I would like the form to be disabled (or the text fields, elements etc) when the checkbox is not enabled, and when ticked i would like it to be enabled.

Is there a function or way round this?

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Dec 6, 2010

I have multiple forms on my website. Some of them have a checkbox which is checked by default, whereas others are unchecked by default. I'm trying to figure out how I would detect whether or not the checkbox is checked, and if it is checked, disable certain fields (not necessarily all fields), and then toggle it back and forth as I check or uncheck the box..I found this code:

Code:
<script language="javascript">
<!--

[code]....

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Dec 28, 2007

What I am trying to make this script do is a user adds in a ID and it will execute that the URL with the user input. So for the user puts in, 123 the excuted URL is http://XXXXXXXXXXXXXXXX.com?u=123

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Apr 10, 2003

if (document.getElementById('layer_s').style.visibility = "visible") {
if (form.s_size.value == ""){
alert("You must enter a size for your product.");
form.s_size.focus();
return (false);
}
}

Code:
<div name="layer_s" id="layer_s" style="visibility: hidden;">
<table>
<tr><td class="arial10bold">Size: </td><td><input type="text" name="s_size" value="" /></td></tr>
</table>
</div>

When I submit my form, it keeps giving me an alert box. It works when the layer is visible, but when its hidden, it doesn't work. After the alert box pops up, the layer becomes visible because of the focus(). I'm trying to bypass that condition when the layer is hidden.

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Sep 12, 2005

I'm trying to protect a form from being submitted by the website it resides on. I'm using the following code, but this just stops the form submitting if '@email.com' is in the form field. How can I say 'if this field contains @email.com then do not submit'?

Whilst we are at it, I also need to do the same with php if anyone also knows this?

Code:
if(value.itech03.value == "@itech.com") {
alert("Message here.");
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value.itech03.select();
return false;
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Jan 29, 2011

Actually, the subject pretty much is the question, but if you want more detail, here goes code...

pans and zooms the map when the user selects a line, which is really useful about 95% of the time and kind of annoying 5% of the time. So I was thinking it would be good to give them the option of disabling that function for the 5%.

the function gets called from a couple of different places in the code, so for neatness' sakes it would be nice to have something within the function above that checks for the checkbox state before executing. but some kind of if/else where the function gets called would be ok, too..

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Dec 23, 2009

Code JavaScript:
<script language=javascript>
function apply()
{
document.frm.sub.disabled=true;

[Code].....

Im using the above code. if, change this code for array of checks box not working. If i change above html code like below , Then how to change javascript?

Code HTML4Strict:
<form name="frm">
<input type="checkbox" name="chk[]" onclick="apply()" />
<input type="checkbox" name="chk[]" onclick="apply()" />

[Code]....

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Jan 18, 2006

I need to be able to uncheck and disable a checkbox based on the option selected in a Select list.

This is what I tried.

==============
<script type="text/javascript">
function GetOptVal(OptVal)
var OptVal;
{
if(OptVal="XX") document.form1.chkbox1.disabled = false;
}
else
{
document.form1.chkbox1.checked = false;
document.form1.chkbox1.disabled = true;
}
</script>
<form name="form1">
<select name="Opt1"
onchange=GetOptVal(document.form1.Opt1[document.form1.Opt1.selectedIndex].value)>
<option value=" ">Select One</option>
<option value="XX">XX</option>
<option value="YY">YY</option>
<option value="ZZ">ZZ</option>
</select>
<input type="checkbox" name="chkbox1" />
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Sep 15, 2006

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My code:

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Oct 19, 2006

I have a form with some text fields that are disabled UNLESS a checkbox is checked. Initially the text fields are disabled and the checkbox is unchecked.

The code is something like this:

Code:
function disableTextbox() {
if (chk.checked) {
txt.disabled = false;
} else {
txt.disabled = true;
}
}

<form action=something.cfm>
<input type=checkbox name=chk onclick=disableTextbox();>
<input type=text name=txt disabled>
<input type=submit>
</form>
When the form is submitted, some validation is performed. If anything fails, I display an error message and show a link to go back (history.back).

The problem that I am having is that when you click on the link to go back, the checkbox on the form is checked, but the text fields are disabled.

You have to re-click the checkbox to update the text field.

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function selectone () {
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var i = 0;
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I wrote a javascript function for this but it doesn't work.

Code:
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