/* ** All ajax calls should come here */ document.domain="vampirefreaks.com"; /* ##### Debug Log" + ""); doc.close(); log.window_ = win; } var logLine = log.window_.document.createElement("div"); logLine.appendChild(log.window_.document.createTextNode(message)); log.window_.document.body.appendChild(logLine); } // ################## myAjaxObject = new AjaxObject; //global AjaxObject, gets re-used throughout code //////////////////////////////////// //AjaxObject Class function AjaxObject(){ this.success = 0; //0 for failure, 1 for success this.details = null; this.error_code = ""; //server response error code this.message = ""; //server response message this.responseFunction = ""; //callback function to send results to this.ajaxRequest = createXmlHttpRequestObject(); //ajax handle } /////////////////////////////////////////////////// //sendRequest function, sends ajax request to server //parameters: // url: server url that does db / php work // options: JSON object which should include: callback, parameters and method //output: // server will send output to callbackFunction below AjaxObject.prototype.sendRequest = function(url, options) { var callback = options['callback']; var params = options['parameters']; var paramsArray = new Array(); for( var key in params ) { var value = encodeURI( params[key] ); paramsArray.push(key + "=" + value); } var parameters = paramsArray.join("&"); // ##### if (!method){ method = "GET"; } var method = options['method']; if( method.toLowerCase() == "get") { url += "?" + parameters; } // ##### if (this.ajaxRequest){ this.responseFunction = eval(callback); this.ajaxRequest.onreadystatechange = this.callbackFunction; //eval(responseFunction); this.ajaxRequest.open(method, url, true); if( method.toLowerCase() == "post" ) { this.ajaxRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); this.ajaxRequest.setRequestHeader("Content-length", parameters.length); this.ajaxRequest.setRequestHeader("Connection", "close"); } this.ajaxRequest.send(parameters); } else { alert("AjaxObject.prototype.sendRequest failed"); return; } } /////////////////////////////// //callbackFunction , receives request from server and sends it to the proper callback Function // parses results and sends them to "responseFunction" specified in sendRequest function. AjaxObject.prototype.callbackFunction = function(){ if (myAjaxObject.ajaxRequest.readyState == 4 && myAjaxObject.ajaxRequest.status == 200 ) { var success = 0; var json = null; var responseText = myAjaxObject.ajaxRequest.responseText; try { json = eval('(' + responseText + ')'); } catch(err) { log(err) } if( json == null ) { //alert("AJAX function failed"); return; } else if( json['isSuccess'] == 1 ) { success = 1; } myAjaxObject.error_code = json['error']; myAjaxObject.message = json['msg']; myAjaxObject.success = success; myAjaxObject.details = eval('(' + json['details'] + ')'); myAjaxObject.responseFunction(); } } ///////////////////////////////////////////////////////// // creates an XMLHttpRequest instance function createXmlHttpRequestObject() { // will store the reference to the XMLHttpRequest object var xmlHttp; // this should work for all browsers except IE6 and older try { // try to create XMLHttpRequest object xmlHttp = new XMLHttpRequest(); } catch(e) { // assume IE6 or older var XmlHttpVersions = new Array( "MSXML2.XMLHTTP.6.0", "MSXML2.XMLHTTP.5.0", "MSXML2.XMLHTTP.4.0", "MSXML2.XMLHTTP.3.0", "MSXML2.XMLHTTP", "Microsoft.XMLHTTP" ); // try every prog id until one works for (var i=0; i