- _default: "*/*"
- }
- },
-
- // Last-Modified header cache for next request
- lastModified: {},
- etag: {},
-
- ajax: function( s ) {
- // Extend the settings, but re-extend 's' so that it can be
- // checked again later (in the test suite, specifically)
- s = jQuery.extend(true, s, jQuery.extend(true, {}, jQuery.ajaxSettings, s));
-
- var jsonp, jsre = /=\?(&|$)/g, status, data,
- type = s.type.toUpperCase();
-
- // convert data if not already a string
- if ( s.data && s.processData && typeof s.data !== "string" )
- s.data = jQuery.param(s.data);
-
- // Handle JSONP Parameter Callbacks
- if ( s.dataType == "jsonp" ) {
- if ( type == "GET" ) {
- if ( jsre.test( !s.url ) )
- s.url += (/\?/.test( s.url ) ? "&" : "?") + (s.jsonp || "callback") + "=?";
- } else if ( !s.data || !jsre.test(s.data) )
- s.data = (s.data ? s.data + "&" : "") + (s.jsonp || "callback") + "=?";
- s.dataType = "json";
- }
-
- // Build temporary JSONP function
- if ( s.dataType == "json" && (s.data && jsre.test(s.data) || jsre.test(s.url)) ) {
- jsonp = "jsonp" + jsc++;
-
- // Replace the =? sequence both in the query string and the data
- if ( s.data )
- s.data = (s.data + "").replace(jsre, "=" + jsonp + "$1");
- s.url = s.url.replace(jsre, "=" + jsonp + "$1");
-
- // We need to make sure
- // that a JSONP style response is executed properly
- s.dataType = "script";
-
- // Handle JSONP-style loading
- window[ jsonp ] = function(tmp){
- data = tmp;
- success();
- complete();
- // Garbage collect
- window[ jsonp ] = undefined;
- try{ delete window[ jsonp ]; } catch(e){}
- if ( head )
- head.removeChild( script );
- };
- }
-
- if ( s.dataType == "script" && s.cache == null )
- s.cache = false;
-
- if ( s.cache === false && type == "GET" ) {
- var ts = now();
- // try replacing _= if it is there
- var ret = s.url.replace(/(\?|&)_=.*?(&|$)/, "$1_=" + ts + "$2");
- // if nothing was replaced, add timestamp to the end
- s.url = ret + ((ret == s.url) ? (/\?/.test(s.url) ? "&" : "?") + "_=" + ts : "");
- }
-
- // If data is available, append data to url for get requests
- if ( s.data && type == "GET" ) {
- s.url += (/\?/.test(s.url) ? "&" : "?") + s.data;
- }
-
- // Watch for a new set of requests
- if ( s.global && ! jQuery.active++ )
- jQuery.event.trigger( "ajaxStart" );
-
- // Matches an absolute URL, and saves the domain
- var parts = /^(\w+:)?\/\/([^\/?#]+)/.exec( s.url );
-
- // If we're requesting a remote document
- // and trying to load JSON or Script with a GET
- if ( s.dataType == "script" && type == "GET" && parts
- && ( parts[1] && parts[1] != location.protocol || parts[2] != location.host )){
-
- var head = document.getElementsByTagName("head")[0];
- var script = document.createElement("script");
- script.src = s.url;
- if (s.scriptCharset)
- script.charset = s.scriptCharset;
-
- // Handle Script loading
- if ( !jsonp ) {
- var done = false;
-
- // Attach handlers for all browsers
- script.onload = script.onreadystatechange = function(){
- if ( !done && (!this.readyState ||
- this.readyState == "loaded" || this.readyState == "complete") ) {
- done = true;
- success();
- complete();
-
- // Handle memory leak in IE
- script.onload = script.onreadystatechange = null;
- head.removeChild( script );
- }
- };
- }
-
- // Use insertBefore instead of appendChild to circumvent an IE6 bug.
- // This arises when a base node is used (#2709 and #4378).
- head.insertBefore( script, head.firstChild );
-
- // We handle everything using the script element injection
- return undefined;
- }
-
- var requestDone = false;
-
- // Create the request object
- var xhr = s.xhr();
-
- // Open the socket
- // Passing null username, generates a login popup on Opera (#2865)
- if( s.username )
- xhr.open(type, s.url, s.async, s.username, s.password);
- else
- xhr.open(type, s.url, s.async);
-
- // Need an extra try/catch for cross domain requests in Firefox 3
- try {
- // Set the correct header, if data is being sent
- if ( s.data )
- xhr.setRequestHeader("Content-Type", s.contentType);
-
- // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
- if ( s.ifModified ) {
- if (jQuery.lastModified[s.url])
- xhr.setRequestHeader("If-Modified-Since", jQuery.lastModified[s.url]);
- if (jQuery.etag[s.url])
- xhr.setRequestHeader("If-None-Match", jQuery.etag[s.url]);