js与jquery的动态加载脚本文件

jquery动态加载

jQuery.getScript(url,[callback])

js动态加载

function loadJs(name) {
    document.write('<script src="'+name+'" type="text/javascript"></script>');
}

//另一种动态加载

function loadjscssfile(filename,filetype){
    if(filetype == "js"){
        var fileref = document.createElement('script');
        fileref.setAttribute("type","text/javascript");
        fileref.setAttribute("src",filename);
    }else if(filetype == "css"){
        var fileref = document.createElement('link');
        fileref.setAttribute("rel","stylesheet");
        fileref.setAttribute("type","text/css");
        fileref.setAttribute("href",filename);
    }
    if(typeof fileref != "undefined"){
        document.getElementsByTagName("head")[0].appendChild(fileref);
    }
}
loadjscssfile("do.js","js");