jquery.loader.js

(function(j,q,u,e,r,y,r,o,x){try{o=jQuery;if(o&&(!r||(r&&o.fn.jquery==r))){x=true}}catch(r){}if(!x||(r&&o.fn.jquery!=r)){(q=j.createElement(q)).type='text/javascript';if(r){q.async=true}q.src='//ajax.googleapis.com/ajax/libs/jquery/'+(r||1)+'/jquery.min.js';u=j.getElementsByTagName(u)[0];q.onload=q.onreadystatechange=(function(){if(!e&&(!this.readyState||this.readyState=='loaded'||this.readyState=='complete')){e=true;x=jQuery;jQuery.noConflict(true)(function(){y(x)});q.onload=q.onreadystatechange=null;u.removeChild(q)}});u.appendChild(q)}else{y(o)}})(document,'script','head',false,false,(function($){$(function(){
        /* code goes here */
        console.log($.fn.jquery);
})}));


// readable:
(function (j, q, u, e, r, y, r, o, x ) {
        // IE8 undefined crash fix
        try {
                // check if we can assign jQuery
                o=jQuery;
                // if jquery is defined and version is not set or version is set and matches the existing one 
                if( o && ( !r || ( r && o.fn.jquery == r ) ) ) {
                        x = true;
                }
        }
        catch(r) {}
        // if jquery isnt set or version is defined and its not matching
        if( !x || ( r && o.fn.jquery != r ) ) {
                (q = j.createElement(q)).type = 'text/javascript';
                if (r) { q.async = true; }
                // dont need http|https - /1/ means latest 1.x version
                q.src = '//ajax.googleapis.com/ajax/libs/jquery/'+(r||1)+'/jquery.min.js';
                u = j.getElementsByTagName(u)[0];
                // onload event for callback
                q.onload = q.onreadystatechange = (function () {                               
                        // first fire when completely loaded and parsed & check if this happened before
                        if (!e && (!this.readyState || this.readyState == 'loaded' || this.readyState == 'complete')) {
                                e = true;
                                // copy space into new var, release control and execute callbacks with passed in own version of jQ
                                x = jQuery;
                                jQuery.noConflict(true)(function(){y(x);});
                                // IE memory leak protection
                                q.onload = q.onreadystatechange = null;
                                u.removeChild(q);
                        }
                });
                u.appendChild(q);
        }
        else {
                // jquery is already there and version matches or we dont care about version
                y( o );
        }
//                                    async   callback
})(document, 'script', 'head', false, false, (function ($) {
        $(function(){
                /* code goes here */
                console.log( $.fn.jquery );
        });
// version if needed - optional (see compressed version above)
}),'1.4.2');