String.prototype.isvalid = function(){
 return !!this.match(/^([a-zA-Z0-9]{1}([a-zA-Z0-9\.\-\_]*)[a-zA-Z0-9]{1})@([a-zA-Z0-9]{1}([a-zA-Z0-9\.\-\_]*)[a-zA-Z0-9]{1})\.([a-zA-Z]{2,4})$/)
}



function dropdown_validator() {
 if (document.form2.name.value=="") {
  alert("Please Enter Your Name.");
  return false;
 } 

 if (document.form2.phone.value=="") {
  alert("Please Enter Your Phone Number.");
  return false;
 }
else if (!document.form2.email.value.isvalid()) {
  alert("Please Enter A Valid Email Address.");
  return false;
 } else {
 return true;
 }



}