function validation()
 {
  var checkEmailId=document.mailingForm.senderEmailID.value;
  var ignoreChar=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
  var theName = document.getElementById("senderName");
  var theEmailID = document.getElementById("senderEmailID");
  var theSubject = document.getElementById("senderSubject");
  var theRequest = document.getElementById("senderRequest");
  if(theName.value == "")
  {
   alert("Please Enter Your Name");
   document.mailingForm.senderName.focus();
   return false;
  }
  else if(theEmailID.value  == "" || !ignoreChar.test(checkEmailId))
  {
   alert("Please Enter Your Email ID Correctly");
   document.mailingForm.senderEmailID.focus();
   return false;
  }
  else if(theSubject.value == "")
  {
   alert("Please Enter the Subject");
   document.mailingForm.senderSubject.focus();
   return false;
  }
  else if(theRequest.value  == "")
  {
   alert("Please Enter Your Request");
   document.mailingForm.senderRequest.focus();
   return false;
  }
  else
  {
   document.mailingForm.submit();
  }
 }