function ValidateForm() {
  var ret=false;
  e=document.getElementById("EmailAddress");
  
  if(e.value==""){
    alert("Please enter your Email Address");
    e.focus();
  } else if (e.value.indexOf('@')<1){
    alert("Please enter a valid Email Address");
    e.focus();  
  } else {
    ret=true;
  }
  return ret;
}