function CheckForm(){
allok=0;
if (document.ContactForm.lastname.value.length>0) {allok++; document.getElementsByName('lastname')[0].className="boxval";} else {document.getElementsByName('lastname')[0].className="badval";}
if (document.ContactForm.firstname.value.length>0) {allok++; document.getElementsByName('firstname')[0].className="boxval";} else {document.getElementsByName('firstname')[0].className="badval";}
if (document.ContactForm.email.value.length>0) {allok++; document.getElementsByName('email')[0].className="boxval";} else {document.getElementsByName('email')[0].className="badval";}
if (document.ContactForm.subject.value.length>0) {allok++; document.getElementsByName('subject')[0].className="boxval";} else {document.getElementsByName('subject')[0].className="badval";}
if (!document.ContactForm.messagefor.selectedIndex==0) {allok++;}
if (allok==5) {document.ContactForm.submit();} else {alert('Please enter all of the required information.');}
}