function validateform()
{
 var formObj;
 formObj = document.resultform;

if(formObj.rollno.value == "" || isNaN(formObj.rollno.value)) 
  {
  alert("Kindly Enter Your Roll Number in Digits");
   formObj.rollno.value="";
   formObj.rollno.focus();
  return false;
  }
if(formObj.sfaculty.value == "sf") 
  {
  alert("Kindly Select One of the Faculty List Down");
  formObj.sfaculty.focus();
  return false;
  }

}