function validate(){
	if(!document.getElementById("email")){
		return false;
	}
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   var email = document.getElementById("email").value
   if(reg.test(email) == false) {
      alert('Invalid Email Address');
	  var emails = document.getElementById("email");
	  emails.style.border = "2px solid #ff0000";
      return false;
   }

}