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How can I disable my submit button if the textarea in my form is empty?

Thursday, 17th September 2009
by Texas


I want to somewhat prevent users from submitting a form if they have not entered any text in the textarea by disabling the submit button using JavaScript.





tiru_pelli 		<html>
<head>
<script type="text/javascript">
function disable()
{
if(document.textArea.text.value=="")
{
document.textArea.submit.disabled=true;
}
else
{
document.textArea.submit.disabled=false;
}
}
</script>
</head>
<body onload="javascript:disable();">
<form name="textArea">
<textarea name="text" rows="2" cols="10" onkeypress="javascript:disable();"></textarea>
<input type="submit" name="submit">
</form>
</body>
</html>
Friday, 18th September 2009
Votes:
40
17

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