function validateCopy() {
	var t = false, fs; 
	if (!(fs = document.forms['myForm'].elements['copy_list']).length)
		t = fs.checked;
	else {
		for (var i = 0; i < fs.length; i++)
			if (t = fs[i].checked) 
				break;
	}
	if (!t) {
		alert('You must check at least one sub-User Checkbox to copy settings to.');
		return false;
	}
}