function login_validate()
{
	if(document.loginform.username.value=="")
		  {
			 alert("Please enter Login Id"); 
			 document.loginform.username.focus();
			 return false;
		  }
	  if(document.loginform.pass.value=="")
		  {
			 alert("Please enter password"); 
			 document.loginform.pass.focus();
			 return false;
		  }
}