function BeginRequest(sender, args) {
  var panelID = sender._postBackSettings.panelID.split("|")[0];
  $('#' + panelID + ' input[@type=submit]').attr('disabled', true);
}
 
function EndRequest(sender, args) {
  var panelID = sender._postBackSettings.panelID.split("|")[0];
  $('#' + panelID + ' input[@type=submit]').attr('disabled', false)
}