// JavaScript Document
function validatelogin(form1) { 
   
   if (form1.username.value == "") { 
   alert("User Name field is empty.")
   form1.username.focus()
   return false
   }
   if (form1.password.value == "") { 
   alert("Password field is empty.") 
   form1.password.focus()
   return false
   } 
}