function validateForm(form){
   var header = "The following fields are required.\n";
   var message = "";

   if(form.fname.value == ""){
   message = "* First Name.\n";
   form.fname.focus();
   }
   if(form.lname.value == ""){
   message = message + "* Last Name.\n";
   form.lname.focus();
   }
   if(form.email.value == ""){
   message = message + "* Email Address.\n";
   form.email.focus();
   }
   var str = form.email.value;
   var filter=/^.+@.+\..{2,3}$/

   if (!filter.test(str)){

      message = message + "* Email Address is not formatted correctly.\n";
   }
   if(message != ""){
   alert(header + message);
   return false;
   }
}