title: How can I change handleError?
body: <p>I have jquery script, which should send response to my file. If everything good, I get success, but if wrong, I should get error function, but I get <code>jQuery.handleError is not a function
  jQuery.handleError(s, xml, status, e);</code></p>
  
  <p>How can I change this handleError to other function? Or what can I do?</p>
  
  <pre><code>jQuery.extend({
  
  createUploadIframe: function(id, uri)
  {
          //create frame
          var frameId = 'jUploadFrame' + id;
          var iframeHtml = '&lt;iframe id="' + frameId + '" name="' + frameId + '" style="position:absolute; top:-9999px; left:-9999px"';
          if(window.ActiveXObject)
          {
              if(typeof uri== 'boolean'){
                  iframeHtml += ' src="' + 'javascript:false' + '"';
  
              }
              else if(typeof uri== 'string'){
                  iframeHtml += ' src="' + uri + '"';
  
              }   
          }
          iframeHtml += ' /&gt;';
          jQuery(iframeHtml).appendTo(document.body);
  
          return jQuery('#' + frameId).get(0);            
  },
  createUploadForm: function(id, fileElementId, data)
  {
      //create form   
      var formId = 'jUploadForm' + id;
      var fileId = 'jUploadFile' + id;
      var form = jQuery('&lt;form  action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"&gt;&lt;/form&gt;');    
      if(data)
      {
          for(var i in data)
          {
              jQuery('&lt;input type="hidden" name="' + i + '" value="' + data[i] + '" /&gt;').appendTo(form);
          }           
      }       
      var oldElement = jQuery('#' + fileElementId);
      var newElement = jQuery(oldElement).clone();
      jQuery(oldElement).attr('id', fileId);
      jQuery(oldElement).before(newElement);
      jQuery(oldElement).appendTo(form);
  
  
  
      //set attributes
      jQuery(form).css('position', 'absolute');
      jQuery(form).css('top', '-1200px');
      jQuery(form).css('left', '-1200px');
      jQuery(form).appendTo('body');      
      return form;
  },
  
  ajaxFileUpload: function(s) {
      // TODO introduce global settings, allowing the client to modify them for all requests, not only timeout        
      s = jQuery.extend({}, jQuery.ajaxSettings, s);
      var id = new Date().getTime()        
      var form = jQuery.createUploadForm(id, s.fileElementId, (typeof(s.data)=='undefined'?false:s.data));
      var io = jQuery.createUploadIframe(id, s.secureuri);
      var frameId = 'jUploadFrame' + id;
      var formId = 'jUploadForm' + id;        
      // Watch for a new set of requests
      if ( s.global &amp;&amp; ! jQuery.active++ )
      {
          jQuery.event.trigger( "ajaxStart" );
      }            
      var requestDone = false;
      // Create the request object
      var xml = {}   
      if ( s.global )
          jQuery.event.trigger("ajaxSend", [xml, s]);
      // Wait for a response to come back
      var uploadCallback = function(isTimeout)
      {           
          var io = document.getElementById(frameId);
          try 
          {               
              if(io.contentWindow)
              {
                   xml.responseText = io.contentWindow.document.body?io.contentWindow.document.body.innerHTML:null;
                   xml.responseXML = io.contentWindow.document.XMLDocument?io.contentWindow.document.XMLDocument:io.contentWindow.document;
  
              }else if(io.contentDocument)
              {
                   xml.responseText = io.contentDocument.document.body?io.contentDocument.document.body.innerHTML:null;
                  xml.responseXML = io.contentDocument.document.XMLDocument?io.contentDocument.document.XMLDocument:io.contentDocument.document;
              }                       
          }catch(e)
          {
              jQuery.handleError(s, xml, null, e);
          }
          if ( xml || isTimeout == "timeout") 
          {               
              requestDone = true;
              var status;
              try {
                  status = isTimeout != "timeout" ? "success" : "error";
                  // Make sure that the request was successful or notmodified
                  if ( status != "error" )
                  {
                      // process the data (runs the xml through httpData regardless of callback)
                      var data = jQuery.uploadHttpData( xml, s.dataType );    
                      // If a local callback was specified, fire it and pass it the data
                      if ( s.success )
                          s.success( data, status );
  
                      // Fire the global callback
                      if( s.global )
                          jQuery.event.trigger( "ajaxSuccess", [xml, s] );
                  } else
                      jQuery.handleError(s, xml, status);
              } catch(e) 
              {
                  status = "error";
                  jQuery.handleError(s, xml, status, e);
              }
  
              // The request was completed
              if( s.global )
                  jQuery.event.trigger( "ajaxComplete", [xml, s] );
  
              // Handle the global AJAX counter
              if ( s.global &amp;&amp; ! --jQuery.active )
                  jQuery.event.trigger( "ajaxStop" );
  
              // Process result
              if ( s.complete )
                  s.complete(xml, status);
  
              jQuery(io).unbind()
  
              setTimeout(function()
                                  {   try 
                                      {
                                          jQuery(io).remove();
                                          jQuery(form).remove();  
  
                                      } catch(e) 
                                      {
                                          jQuery.handleError(s, xml, null, e);
                                      }                                   
  
                                  }, 100)
  
              xml = null
  
          }
      }
      // Timeout checker
      if ( s.timeout &gt; 0 ) 
      {
          setTimeout(function(){
              // Check to see if the request is still happening
              if( !requestDone ) uploadCallback( "timeout" );
          }, s.timeout);
      }
      try 
      {
  
          var form = jQuery('#' + formId);
          jQuery(form).attr('action', s.url);
          jQuery(form).attr('method', 'POST');
          jQuery(form).attr('target', frameId);
          if(form.encoding)
          {
              jQuery(form).attr('encoding', 'multipart/form-data');               
          }
          else
          {   
              jQuery(form).attr('enctype', 'multipart/form-data');            
          }           
          jQuery(form).submit();
  
      } catch(e) 
      {           
          jQuery.handleError(s, xml, null, e);
      }
  
      jQuery('#' + frameId).load(uploadCallback   );
      return {abort: function () {}}; 
  
  },
  
  uploadHttpData: function( r, type ) {
      var data = !type;
      data = type == "xml" || data ? r.responseXML : r.responseText;
      // If the type is "script", eval it in global context
      if ( type == "script" )
          jQuery.globalEval( data );
      // Get the JavaScript object, if JSON is used.
      if ( type == "json" )
          eval( "data = " + data );
      // evaluate scripts within html
      if ( type == "html" )
          jQuery("&lt;div&gt;").html(data).evalScripts();
  
      return data;
  }
  })
  </code></pre>