function InvalidLogin()
{
   
   var msg=window.document.getElementById("invalid");
   msg.style.display="block";
   document.frmlogin.btnsubmit.disabled=true;
   document.frmlogin.txtloginid.select();
}
function validLogin()
{
   var msg=window.document.getElementById("invalid");
   document.frmlogin.btnsubmit.disabled=true;
   msg.style.display="none";
}
function loginEnable()
{
  var msg=window.document.getElementById("invalid");
  document.frmlogin.btnsubmit.disabled=false;
   msg.style.display="none";
}
function show()
{
    var s=window.document.getElementById("sh");
    s.style.display="block";
}
function hide()
{
  var h=window.document.getElementById("sh");
    h.style.display="none";
}