function loadScript(url, callback){
 
    var script = document.createElement("script")
    script.type = "text/javascript";
 
    if (script.readyState){  //IE
        script.onreadystatechange = function(){
            if (script.readyState == "loaded" ||
                    script.readyState == "complete"){
                script.onreadystatechange = null;
                callback();
            }
        };
    } else {  //Others
        script.onload = function(){
            callback();
        };
    }
 
    script.src = url;
    document.getElementsByTagName("head")[0].appendChild(script);
}
function loadCSS(url){
		var cssLink = document.createElement("link");
		cssLink.rel = "stylesheet";
		cssLink.rev = "stylesheet";
		cssLink.type = "text/css";
		cssLink.media = "screen";
		cssLink.href = url;
		document.getElementsByTagName("head")[0].appendChild(cssLink);
}
QZONE = {};