function validateRequired(form) {
	var invalid;

	for(i=0;i<=form.length-1;i++) {
		if(form.elements[i].id != "submit") {
			element = document.getElementById(form.elements[i].id);
			elementid = form.elements[i].id;
			
			label = form.elements[i].id + "label";
			objLabel = document.getElementById(label);
			
			if(element.getAttribute("required") && element.value == "") {
				invalid = 1;
				
				if(objLabel) {
					objLabel.className = "red";
				}
			}
		}
	}
	
	if(invalid) {
		return false;
	} else {
		return true;
	}
}