rem: alert(e); 
add: alert(e.name + ": " + e.message); 
context:   _pollHandler: function(request)   {    ajax._queueMessages=true;    try    {      ajax._messageHandler(request);      ajax._pollEvent(ajax._first);      ajax._first=false;    }    catch(e)    {        alert(e);    }        ajax._queueMessages=false;        if (ajax._messages==0)    {      if (ajax.poll)        new Ajax.Request('.', { method: 'get', parameters: 'ajax=poll&message=poll', onSuccess: ajax._pollHandler });     }    else    {      var body = ajax._messageQueue+'&ajax=poll&message=poll';      ajax._messageQueue='';      ajax._messages=0;      new Ajax.Request('.', { method: 'post', onSuccess: ajax._pollHandler, postBody: body });     }  },
meta: 9683	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9683/23a90518fb26d703e2f727566eb9a35a09d2703d/ajax.js/buggy/trunk/examples/test-webapp/src/main/webapp/js/ajax.js