function loginValidation()
{
var d = document.getElementById('user');
if(d.value == "")
{
    alert("Please enter username");
    d.focus();
    return false;
}


if(d.value!="")
{pass = d.value.indexOf('@',0);
if(pass==-1)
{
alert("Not a valid Username");
 d.focus();
 return (false);
}
}
  if (d.value.length < 5)
  {
    alert("Please enter at least 5 characters in the \"username\" field.");
    d.focus();
    return (false);
  } 


var p = document.getElementById('pass');
if(p.value == "")
{
    alert("Please enter password");
    p.focus();
    return false;
}

  if (p.value.length < 6)
  {
    alert("Please enter at least 6 characters in the \"password\" field.");
    p.focus();
    return (false);
  }

return true;
}