function CheckForm() {
	Required = document.getElementsByTagName("input");
	RequiredCount = Required.length;
	for(x=0; x < RequiredCount; x++) {
		if (Required[x].type == "text" 
			&& Required[x].id != "" 
			&& Required[x].id != "start_date" 
			&& Required[x].id != "end_date"
			) {
			if (Required[x].value == "") {
				alert(Required[x].id + " is required.");
				Required[x].focus();
				return false;
			}
		}
	}
}