// Copyright 2008 Covance Inc.

function DoLogin(LogIn)
   {
       if (LogIn.user_name.value == "") {
           alert("Please enter your user name.");
           LogIn.user_name.focus();
           LogIn.user_name.select();
           return false
       }
       if (LogIn.password.value == "") {
           alert("Please enter your password.");
           LogIn.password.focus();
           LogIn.password.select();
           return false
       }
       return true

   }