function check() {

 if(document.eForm.ename.value == "")
  {
   alert("Please enter your name!");
   document.eForm.ename.focus();
   return false;
  }

 if(document.eForm.email.value == "")
  {
   alert("Please enter your Email Address!");
   document.eForm.email.focus();
   return false;
  }

 if(document.eForm.email.value != ""&&document.eForm.email.value.indexOf('@') == -1)
  {
   alert("No valid Email Address!");
   document.eForm.email.focus();
   return false;
  }
  
 return true;
}