var ClickStop={
  stop: function(ele)
  {
    var playground=document.getElementById('playground');
    
    var link=playground.getElementsByTagName('a');
    var tmp =ele.href;
    
    for(var i=0; i<link.length; ++i)
      link[i].href='javascript:;';
    
    window.location.href=tmp;
  }
};