}
// Watch for a new set of requests
if ( s.global && ! jQuery.active++ )
jQuery.event.trigger( “ajaxStart” );
var requestDone = false;
// Create the request object
var xml = new XMLHttpRequest();
// Open the socket
xml.open(s.type, s.url, s.async);
// Set the correct header, if data is being sent
if ( s.data )
xml.setRequestHeader(“Content-Type”, s.contentType);
// Set the If-Modified-Since header, if ifModified mode.
if ( s.ifModified )
xml.setRequestHeader(“If-Modified-Since”,
jQuery.lastModified[s.url] || “Thu, 01 Jan 1970 00:00:00 GMT” );
// Set header so the called script knows that it’s an XMLHttpRequest
xml.setRequestHeader(“X-Requested-With”, “XMLHttpRequest”);
// Make sure the browser sends the right content length
if ( xml.overrideMimeType )
xml.setRequestHeader(“Connection”, “close”);
// Allow custom headers/mimetypes
if( s.beforeSend )
s.beforeSend(xml);
if (s.global)
jQuery.event.trigger(“ajaxSend”, [xml, s]);
// Wait for a response to come back
