[javascript] 把css 與 javascript load 近來的function()

function loadJS(url){
var retJS = document.createElement('script');
retJS.setAttribute("language","JavaScript");
retJS.setAttribute("src", url);
document.getElementsByTagName("body").item(0).appendChild(retJS);
}
function loadCSS(url){
var retCSS = document.createElement('link');
retCSS.setAttribute("rel","stylesheet");
retCSS.setAttribute("type","text/css");
retCSS.setAttribute("href",url);
document.getElementsByTagName("head")[0].appendChild(retCSS);
}