//V3.01.A - http://www.openjs.com/scripts/jx/ jx = { //Create a xmlHttpRequest object - this is the constructor. getHTTPObject : function() { var http = false; //Use IE's ActiveX items to load the file. if(typeof ActiveXObject != 'undefined') { try {http = new ActiveXObject("Msxml2.XMLHTTP");} catch (e) { try {http = new ActiveXObject("Microsoft.XMLHTTP");} catch (E) {http = false;} } //If ActiveX is not available, use the XMLHttpRequest of Firefox/Mozilla etc. to load the document. } else if (window.XMLHttpRequest) { try {http = new XMLHttpRequest();} catch (e) {http = false;} } return http; }, // This function is called from the user's script. //Arguments - // url - The url of the serverside script that is to be called. Append all the arguments to // this url - eg. 'get_data.php?id=5&car=benz' // callback - Function that must be called once the data is ready. // format - The return type for this function. Could be 'xml','json' or 'text'. If it is json, // the string will be 'eval'ed before returning it. Default:'text' // method - GET or POST. Default 'GET' load : function (url,callback,format,method, opt) { var http = this.init(); //The XMLHttpRequest object is recreated at every call - to defeat Cache problem in IE if(!http||!url) return; //XML Format need this for some Mozilla Browsers if (http.overrideMimeType) http.overrideMimeType('text/xml'); if(!method) method = "GET";//Default method is GET if(!format) format = "text";//Default return type is 'text' if(!opt) opt = {}; format = format.toLowerCase(); method = method.toUpperCase(); //Kill the Cache problem in IE. var now = "uid=" + new Date().getTime(); url += (url.indexOf("?")+1) ? "&" : "?"; url += now; var parameters = null; if(method=="POST") { var parts = url.split("\?"); url = parts[0]; parameters = parts[1]; } http.open(method, url, true); if(method=="POST") { http.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); http.setRequestHeader("Content-length", parameters.length); http.setRequestHeader("Connection", "close"); } var ths = this;// Closure if(opt.handler) { //If a custom handler is defined, use it http.onreadystatechange = function() { opt.handler(http); }; } else { http.onreadystatechange = function () {//Call a function when the state changes. if (http.readyState == 4) {//Ready State will be 4 when the document is loaded. if(http.status == 200) { var result = ""; if(http.responseText) result = http.responseText; //If the return is in JSON format, eval the result before returning it. if(format.charAt(0) == "j") { //\n's in JSON string, when evaluated will create errors in IE result = result.replace(/[\n\r]/g,""); result = eval('('+result+')'); } else if(format.charAt(0) == "x") { //XML Return result = http.responseXML; } //Give the data to the callback function. if(callback) callback(result); } else { if(opt.loadingIndicator) document.getElementsByTagName("body")[0].removeChild(opt.loadingIndicator); //Remove the loading indicator if(opt.loading) document.getElementById(opt.loading).style.display="none"; //Hide the given loading indicator. if(error) {error(http.status);} } } } } http.send(parameters); }, bind : function(user_options) { var opt = { 'url':'', //URL to be loaded 'onSuccess':false, //Function that should be called at success 'onError':false, //Function that should be called at error 'format':"text", //Return type - could be 'xml','json' or 'text' 'method':"GET", //GET or POST 'update':"", //The id of the element where the resulting data should be shown. 'loading':"", //The id of the loading indicator. This will be set to display:block when the url is loading and to display:none when the data has finished loading. 'loadingIndicator':"" //HTML that would be inserted into the document once the url starts loading and removed when the data has finished loading. This will be inserted into a div with class name 'loading-indicator' and will be placed at 'top:0px;left:0px;' } for(var key in opt) { if(user_options[key]) {//If the user given options contain any valid option, ... opt[key] = user_options[key];// ..that option will be put in the opt array. } } if(!opt.url) return; //Return if a url is not provided var div = false; if(opt.loadingIndicator) { //Show a loading indicator from the given HTML div = document.createElement("div"); div.setAttribute("style","position:absolute;top:0px;left:0px;"); div.setAttribute("class","loading-indicator"); div.innerHTML = opt.loadingIndicator; document.getElementsByTagName("body")[0].appendChild(div); this.opt.loadingIndicator=div; } if(opt.loading) document.getElementById(opt.loading).style.display="block"; //Show the given loading indicator. this.load(opt.url,function(data){ if(opt.onSuccess) opt.onSuccess(data); if(opt.update) document.getElementById(opt.update).innerHTML = data; if(div) document.getElementsByTagName("body")[0].removeChild(div); //Remove the loading indicator if(opt.loading) document.getElementById(opt.loading).style.display="none"; //Hide the given loading indicator. },opt.format,opt.method, opt); }, init : function() {return this.getHTTPObject();} } var JSON = JSON || {}; (function () { function f(n) { // Format integers to have at least two digits. return n < 10 ? '0' + n : n; } if (typeof Date.prototype.toJSON !== 'function') { Date.prototype.toJSON = function (key) { return isFinite(this.valueOf()) ? this.getUTCFullYear() + '-' + f(this.getUTCMonth() + 1) + '-' + f(this.getUTCDate()) + 'T' + f(this.getUTCHours()) + ':' + f(this.getUTCMinutes()) + ':' + f(this.getUTCSeconds()) + 'Z' : null; }; String.prototype.toJSON = Number.prototype.toJSON = Boolean.prototype.toJSON = function (key) { return this.valueOf(); }; } var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, gap, indent, meta = { // table of character substitutions '\b': '\\b', '\t': '\\t', '\n': '\\n', '\f': '\\f', '\r': '\\r', '"' : '\\"', '\\': '\\\\' }, rep; function quote(string) { // If the string contains no control characters, no quote characters, and no // backslash characters, then we can safely slap some quotes around it. // Otherwise we must also replace the offending characters with safe escape // sequences. escapable.lastIndex = 0; return escapable.test(string) ? '"' + string.replace(escapable, function (a) { var c = meta[a]; return typeof c === 'string' ? c : '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4); }) + '"' : '"' + string + '"'; } function str(key, holder) { // Produce a string from holder[key]. var i, // The loop counter. k, // The member key. v, // The member value. length, mind = gap, partial, value = holder[key]; // If the value has a toJSON method, call it to obtain a replacement value. if (value && typeof value === 'object' && typeof value.toJSON === 'function') { value = value.toJSON(key); } // If we were called with a replacer function, then call the replacer to // obtain a replacement value. if (typeof rep === 'function') { value = rep.call(holder, key, value); } // What happens next depends on the value's type. switch (typeof value) { case 'string': return quote(value); case 'number': // JSON numbers must be finite. Encode non-finite numbers as null. return isFinite(value) ? String(value) : 'null'; case 'boolean': case 'null': // If the value is a boolean or null, convert it to a string. Note: // typeof null does not produce 'null'. The case is included here in // the remote chance that this gets fixed someday. return String(value); // If the type is 'object', we might be dealing with an object or an array or // null. case 'object': // Due to a specification blunder in ECMAScript, typeof null is 'object', // so watch out for that case. if (!value) { return 'null'; } // Make an array to hold the partial results of stringifying this object value. gap += indent; partial = []; // Is the value an array? if (Object.prototype.toString.apply(value) === '[object Array]') { // The value is an array. Stringify every element. Use null as a placeholder // for non-JSON values. length = value.length; for (i = 0; i < length; i += 1) { partial[i] = str(i, value) || 'null'; } // Join all of the elements together, separated with commas, and wrap them in // brackets. v = partial.length === 0 ? '[]' : gap ? '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' : '[' + partial.join(',') + ']'; gap = mind; return v; } // If the replacer is an array, use it to select the members to be stringified. if (rep && typeof rep === 'object') { length = rep.length; for (i = 0; i < length; i += 1) { k = rep[i]; if (typeof k === 'string') { v = str(k, value); if (v) { partial.push(quote(k) + (gap ? ': ' : ':') + v); } } } } else { // Otherwise, iterate through all of the keys in the object. for (k in value) { if (Object.hasOwnProperty.call(value, k)) { v = str(k, value); if (v) { partial.push(quote(k) + (gap ? ': ' : ':') + v); } } } } // Join all of the member texts together, separated with commas, // and wrap them in braces. v = partial.length === 0 ? '{}' : gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' : '{' + partial.join(',') + '}'; gap = mind; return v; } } // If the JSON object does not yet have a stringify method, give it one. if (typeof JSON.stringify !== 'function') { JSON.stringify = function (value, replacer, space) { // The stringify method takes a value and an optional replacer, and an optional // space parameter, and returns a JSON text. The replacer can be a function // that can replace values, or an array of strings that will select the keys. // A default replacer method can be provided. Use of the space parameter can // produce text that is more easily readable. var i; gap = ''; indent = ''; // If the space parameter is a number, make an indent string containing that // many spaces. if (typeof space === 'number') { for (i = 0; i < space; i += 1) { indent += ' '; } // If the space parameter is a string, it will be used as the indent string. } else if (typeof space === 'string') { indent = space; } // If there is a replacer, it must be a function or an array. // Otherwise, throw an error. rep = replacer; if (replacer && typeof replacer !== 'function' && (typeof replacer !== 'object' || typeof replacer.length !== 'number')) { throw new Error('JSON.stringify'); } // Make a fake root object containing our value under the key of ''. // Return the result of stringifying the value. return str('', {'': value}); }; } // If the JSON object does not yet have a parse method, give it one. if (typeof JSON.parse !== 'function') { JSON.parse = function (text, reviver) { // The parse method takes a text and an optional reviver function, and returns // a JavaScript value if the text is a valid JSON text. var j; function walk(holder, key) { // The walk method is used to recursively walk the resulting structure so // that modifications can be made. var k, v, value = holder[key]; if (value && typeof value === 'object') { for (k in value) { if (Object.hasOwnProperty.call(value, k)) { v = walk(value, k); if (v !== undefined) { value[k] = v; } else { delete value[k]; } } } } return reviver.call(holder, key, value); } // Parsing happens in four stages. In the first stage, we replace certain // Unicode characters with escape sequences. JavaScript handles many characters // incorrectly, either silently deleting them, or treating them as line endings. cx.lastIndex = 0; if (cx.test(text)) { text = text.replace(cx, function (a) { return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4); }); } // In the second stage, we run the text against regular expressions that look // for non-JSON patterns. We are especially concerned with '()' and 'new' // because they can cause invocation, and '=' because it can cause mutation. // But just to be safe, we want to reject all unexpected forms. // We split the second stage into 4 regexp operations in order to work around // crippling inefficiencies in IE's and Safari's regexp engines. First we // replace the JSON backslash pairs with '@' (a non-JSON character). Second, we // replace all simple value tokens with ']' characters. Third, we delete all // open brackets that follow a colon or comma or that begin the text. Finally, // we look to see that the remaining characters are only whitespace or ']' or // ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval. if (/^[\],:{}\s]*$/. test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@'). replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']'). replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) { // In the third stage we use the eval function to compile the text into a // JavaScript structure. The '{' operator is subject to a syntactic ambiguity // in JavaScript: it can begin a block or an object literal. We wrap the text // in parens to eliminate the ambiguity. j = eval('(' + text + ')'); // In the optional fourth stage, we recursively walk the new structure, passing // each name/value pair to a reviver function for possible transformation. return typeof reviver === 'function' ? walk({'': j}, '') : j; } // If the text is not JSON parseable, then a SyntaxError is thrown. throw new SyntaxError('JSON.parse'); }; } }());