function validate(frm){
	if(frm.NameVal.value == ''){
		alert("Name is required");
		frm.NameVal.focus();
		return false;
	}else if(frm.Email.value == ''){
		alert("Email is required");
		frm.Email.focus();
		return false;
	}else if(frm.ContactID.selectedIndex == 0){
		alert("Contact is required");
		return false;
	}else if(frm.Message.value == ''){
		alert("Message is required");
		frm.Message.focus();
		return false;
	}
	if(frm.Email.value.length > 0){
		if(!validateEmail(frm.Email.value)){
			alert("Invalid email address");
			frm.Email.select();
			return false;
		}
	}
}
function validateEmail(stringval){
	var retVal	= false;
	var check 	= /^.+\@.+\..+$/;
	var check 	= /^[A-Za-z0-9\._-]+@+[A-Za-z0-9\._-]+\.+[A-Za-z]{2,3}$/;
	if(check.exec(stringval)){
		retVal	= true;
	}
	return retVal;   
}