/**
 error handling, if any js error occurs, if send it to the error action, which in turn logs to opsdata
 **/
 
 window.onerror = function (message, url, line) {
      /** log message **/
      var i = new Image();
      i.src = '/log/error.do?url=' + escape(url) + '&message=' + escape(message) + '&line=' + line;
 }