Bearify (replace all images with images of bears)

gistfile1.js

var jQueryScriptOutputted = false;
function initJQuery() {
    
    //if the jQuery object isn't available
    if (typeof(jQuery) == 'undefined') {
    
        if (! jQueryScriptOutputted) {
            //only output the script once..
            jQueryScriptOutputted = true;
            
            //output the script (load it from google api)
            document.write("<script type='text/javascript' src='https://code.jquery.com/jquery-2.1.1.min.js'></script>");
        }
        setTimeout("initJQuery()", 50);
    } else {
                        
        $(function() {  
            $("img").each(function(){
				var img = $(this),
				h = img.height(),
				w = img.width();
				img.attr("src", "http://placebear.com/g/" + w + "/" + h);

			});
        });
    }
            
}
initJQuery();