function mailcheck(dig)
{
	with(dig){
	if (usersubject(subject,"Please Enter Subject")==false) {subject.focus(); return false;};
	if (usermassege(massege,"Please Enter Your Message")==false) {massege.focus(); return false;};
	if (validate(email,"Plese Enter E-mail adderess")==false) {email.focus(); return false;};
	}
	
}


function usersubject() { if(document.frm.subject.value == 0){ alert("Please Enter Subject");return false; } }
function usermassege() { if(document.frm.massege.value == 0){ alert("Please Enter Your Message");return false; } }
function validate() {
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   var address = document.frm.email.value;
   if(reg.test(address) == false) {
      alert('Invalid Email Address');
      return false;
   } else {  return true; }
}