Load File external
function loadjscssfile(filename, filetype){
if (filetype=="js"){ //if filename is a external JavaScript file
var fileref=document.createElement('script');
fileref.setAttribute("type","text/javascript");
fileref.setAttribute("src", filename);
}
else if (filetype=="css"){ //if filename is an external CSS file
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);
}