function emailCheck(emailStr) {
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null) {
		alert("email address seems incorrect (check @ and .'s)");
		return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	if (user.match(userPat)==null) {
		alert("the username doesn't seem to be valid.");
		return false;
	}
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
		  for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				alert("destination IP address is invalid!");
			return false;
			}
		}
		return true;
	}
	var domainArray=domain.match(domainPat);
	if (domainArray==null) {
		alert("the domain name doesn't seem to be valid.");
		return false;
	}
	var atomPat=new RegExp(atom,"g");
	var domArr=domain.match(atomPat);
	var len=domArr.length;
	if (domArr[domArr.length-1].length<2 ||
		domArr[domArr.length-1].length>3) {
	   alert("the address must end in a three-letter domain, or two letter country.");
	   return false;
	}
	if (len<2) {
	   var errStr="this address is missing a hostname!";
	   alert(errStr);
	   return false;
	}
	return true;
}
function mysubmit(){
	if(!UPTvalidateform(document.UPTml15133))
	{
	window.document.UPTml15133.submit();
	return true;}else{
	return false;};
}
function UPTvalidateform(thisform) {
	if(thisform.elements['FirstName'].value == "") {
		alert("please enter a value for First Name");
		return true;
	}
	if(thisform.elements['LastName'].value == "") {
		alert("please enter a value for Last Name");
		return true;
	}
	if(thisform.elements['Company'].value == "") {
		alert("please enter a value for Company");
		return true;
	}
	if(thisform.elements['ContactPerson'].value == "") {
		alert("please enter a value for Contact Person");
		return true;
	}
	if(thisform.elements['MailFrom'].value == "") {
		alert("please enter a value for E-Mail");
		return true;
	}
	if(thisform.elements['DayPhone'].value == "") {
		alert("please enter a value for Day Phone");
		return true;
	}
	if(thisform.elements['NightPhone'].value == "") {
		alert("please enter a value for Night Phone");
		return true;
	}
	if(thisform.elements['Notes'].value == "") {
		alert("please enter a value for Notes");
		return true;
	}
	if(emailCheck(thisform.MailFrom.value)) {
		return false;
	}
	else {
		return true;
	}
}