JSL.ajax

JSL.ajax("http://www.example.com").load(function(data) {
 alert(data); //data has the data fetched from the given url
});

JSL.ajax("http://www.example.com/get_data.php?hello=world&foo=bar").load(function(data) {
     alert(data);
 }, "text", "POST");

// File /var/www/html/Sites/openjs/openjs.com/scripts/jslibrary/code/jsl_ajax.js, Line 57
function (callback,format,method) {
    this._init(); //The XMLHttpRequest object is recreated at every call - to defeat Cache problem in IE
    var url = this.url;
    if(!this.http||!url) return;
    //XML Format need this for some Mozilla Browsers
    if (this.http.overrideMimeType) this.http.overrideMimeType('text/xml');
 
    this.callback=callback;
    method = method||"GET";//Default method is GET
    format = format||"text";//Default return type is 'text'
    this.format = format.toLowerCase();
    method = method.toUpperCase();
    var ths = this;//Closure
 
    //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];
    }
    this.http.open(method, url, true);
 
    if(method=="POST") {
        this.http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
        this.http.setRequestHeader("Content-length", parameters.length);
        this.http.setRequestHeader("Connection", "close");
    }
 
    if(this.handler) { //If a custom handler is defined, use it
        this.http.onreadystatechange = this.handler;
    } else {
        this.http.onreadystatechange = function () { /// [IGNORE] Call a function when the state changes.
            if(!ths) return;
            var http = ths.http;
            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(ths.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(ths.format.charAt(0) == "x") { //XML Return
                        result = http.responseXML;
                    }
 
                    //Give the data to the callback function.
                    if(ths.callback) ths.callback(result);
                } else {
                    if(ths.opt.loading_text) document.getElementsByTagName("body")[0].removeChild(ths.opt.loading_text); //Remove the loading indicator element
                    if(ths.opt.loading_indicator && document.getElementById(ths.opt.loading_indicator)) {
                        document.getElementById(ths.opt.loading_indicator).style.display="none"; //Hide the given loading indicator.
                    }
 
                    if(ths.error) ths.error(http.status);
                }
            }
        }
    }
    this.http.send(parameters);
}

var options = { 
    'onSuccess':alert,
    //other options go here...
}

JSL.ajax("http://www.example.com/get_data.php?hello=world&foo=bar").bind(options);

JSL.ajax('data.php?fetch=true&num=42&name=marvin').bind({
        "onSuccess":alert,
        "onError":function(status){alert("Something went wrong. Error : "+status)},
        "loading":"loading"
    });

// File /var/www/html/Sites/openjs/openjs.com/scripts/jslibrary/code/jsl_ajax.js, Line 152
function(user_options) {
    var opt = {
        'onSuccess':false,
        'onError':false,
        'format':"text",
        'method':"GET",
        'update':"",
        'loading_indicator':"",
        'loading_text':""
    }
    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.
        }
    }
    this.opt = opt;
    opt.url = this.url;
    if(opt.onError) this.error = opt.onError;
 
    var div = false;
    if(opt.loading_text) { //Show a loading indicator from the given HTML
        if(opt.loading_indicator) div = document.getElementById(opt.loading_indicator); // If both loading_indicator and loading_text is given, use the 'loading_indicator' element as the holder for loading_text
        else {
            div = document.createElement("div");
            div.setAttribute("style","position:absolute;top:0px;left:0px;");
            div.setAttribute("class","loading-indicator");
            document.getElementsByTagName("body")[0].appendChild(div);
        }
 
        div.innerHTML = opt.loading_text;
        opt.loading_text=div;
    }
    if(opt.loading_indicator) document.getElementById(opt.loading_indicator).style.display="block"; //Show the given loading indicator.
 
    this.load(function(data) {
        if(opt.update) document.getElementById(opt.update).innerHTML = data;
 
        if(div && !opt.loading_indicator) document.getElementsByTagName("body")[0].removeChild(div); //Remove the loading indicator
        if(opt.loading_indicator) document.getElementById(opt.loading_indicator).style.display="none"; //Hide the given loading indicator.
 
        if(opt.onSuccess) opt.onSuccess(data);// Call the onSuccess function
    },opt.format,opt.method);
}