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View Full Version : yet another disable the submit button javascript question.

clipster
Apr 17th 2009, 9:21 pm
I'm a total idiot with javascript.

I need to disable a submit button when any one of 4 text fields (text area or input type=text types) is changed.

scenario... data pulled from db prefills the form elements. If user changes any of the value=' saved text from db ' displayed on the page, the submit button is disabled.

I have two separate submit buttons, one named 'changedata', the other named 'submit'. It's the one named submit that must be disabled if the user changes any of the data on this form.

I have spent too many hours this evening looking for something that works, but heck, I can't even get my submit button to be active even with `disabled=false` attribute (I was just testing ff3 - having the word disabled anywhere in the <input type=submit.... > automatically disables that button. I have no idea what to do.

How much $$ for a solution?
Thanks in advance.
conanite
Apr 18th 2009, 9:43 am
What do you need the submit button for if it's not going to be used? I mean, usually there's no point in submitting a form if the user *hasn't* changed anything; so why put it there in the first place?
PoPSiCLe
Apr 18th 2009, 10:02 am
I would agree with conanite - maybe you could describe what you want the form to do in more detail - it might be possible to do this some other way.

For instance, it should be possible to do different things depending on what has been done to the form, with just one submit-button. (Eg: a user loads the form, doesn't change anything -> do A. A user changes one or more fields -> do B).
marty
Apr 20th 2009, 12:49 pm
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Disable Submit</title>
<script language="JavaScript">
function disableButton(){
var submitObject = document.getElementById("submit")
submitObject.disabled = true
}
</script>
</head>
<body>
<input onkeydown="disableButton()">
<input id="submit" type="Submit">
</body>
</html>