OMG, this code is great, it is just what I need! You rock! The fix for the disable/enable feature is working great, too.

One more thing....

I want to make sure that people check at least one checkbox (in other words, I don't want them to submit the form without filling out anything). Is there a way to see that at least one checkbox is checked?

Thanks in advance,
WebGrrl

Far as I can see, it works in Safari version 2.0.4.
I get sent to the Yahoo page.
Maybe just dosen't work in DOM enabled browsers?
No idea, really...

Nevermind....
looks like you're good.

Just alter this function to be like:

function validateForm() {
			var hasCheck = false;
			var errormsg = '';
			var checkboxes = document.getElementsByTagName('input');
			for(a in checkboxes) {
				try {
					if(checkboxes[a].checked) {
						hasCheck = true;
						break;
					}
				}
				catch(e) {
				}
			}
			var inputs = new Array(document.getElementById('window'),document.getElementById('reroof'),document.getElementById('reside'));
			for(i in inputs) {
				if(inputs[i].checked) {
					if((document.getElementById(inputs[i].id + 'valuation').value.length < 2) || isNaN(document.getElementById(inputs[i].id + 'valuation').value)) {
						errormsg += inputs[i].id + ": Requires a valid number of certain length.\n";
					}
				}
			}
			if(!hasCheck) {
				errormsg += "You must at least check one before submitting.\n";
			}
			if(errormsg.length < 2) {
				return true;
			}
			alert(errormsg);
			return false;
		}

That should be it.

Cheers,

MC

Awesome, I will try this out

Thanks a million,
WebGrrl

mastercomputers:
The above code works beautifully in IE. It makes sure that

• 1. A value is associated with any checked checkbox AND
• 2. At least one checkbox is checked

However, it doesn't seem to do #1 in Netscape and Firefox. Any ideas?

BTW, the first version of this code (meant to do only #1) DOES work in Netscape and Firefox, interestingly enough, so it looks like both concepts can work, I just need them to work for Netscape & Firefox in the same chunk of code. Can you help? That would be really awesome...

Thank you in advance,
WebGrrl