function checkrequired(which) {
	var pass=true;
	if (submitcount == 0){
		for (i=0;i<which.length;i++) {
			var tempobj=which.elements[i];
			if (tempobj.name.substring(0,8)=="required") {
				if (((tempobj.type=="text"||tempobj.type=="textarea")&&tempobj.value=='')||(tempobj.type.toString().charAt(0)=="s"&&tempobj.selectedIndex==0)) {
					pass=false;
					break;
				}
			}
		}
		if (!pass) {
			shortFieldName=tempobj.name.substring(8,30).toUpperCase();
			alert("The "+shortFieldName+" field is a required field.");
			return false;
		} else {
			submitcount++;
			return true;
		}
    } else {
	      alert("This form has already been submitted. Thank you.");
	      return false;
    }	
}