function set()
{
   if (document.dataform.name.value.length == 0)  {
      alert ("Kindly enter your name.");
      document.dataform.name.focus();
      return false;
   }
   if (!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(document.dataform.email.value))) {
         alert("Invalid Email ID. Kindly enter the correct ID.");
         document.dataform.email.focus();
         return (false);
   }
   if(document.dataform.phone_no.value == "") {
      alert ("Kindly enter your phone nunber.");
      document.dataform.phone_no.focus();
      return false;
   }
   if(document.dataform.city.value == "") {
      alert ("Kindly enter your city.");
      document.dataform.city.focus();
      return false;
   }
   if (document.dataform.country.selectedIndex == "")  {
      alert ("Kindly select your country name.");
      document.dataform.country.focus();
      return false;
   }
   return true;
}