function showPopup(url,top) {
  $('#popupmaindiv').css('margin-top',top+'px');

  $('#popupexternalcontent').load(url);

  $('#popupbg').fadeTo('fast',0.8, function() {
    $('#popupmaindiv').slideDown('fast');
  });
  
}

function closePopup() {
  $('#popupbg').fadeOut('fast',0);
  $('#popupmaindiv').fadeOut('fast');
}

function showWait(){
  $('#wait').html('<img src="/imgs/ajax-loader.gif"  loop="infinite"/>');
  $('#wait').fadeIn(100);
}

function hideWait(){
  $('#wait').fadeOut(100, function(){ $(this).html('');});
  
}