my latest endeavor with javascript

gistfile1.txt

function loadasync(url){
	var head=document.getElementsByTagName("head")[0];
	var script=document.createElement("script");
	script.src=url;
	head.appendChild(script);
}

function urlArg(){
	var args = {};
	var query = window.location.search.substring(1);
	var pairs = query.split("&");
	for (var i =0; i < pairs.length; i++){
		var pos = pairs[i].indexOf("=");
		var name = pairs[i].substring(0,pos);
		var value = pairs[i].substring(pos+1);
		value = decodeURIComponent(value);
		args[name]=value;
	}
	return args;
}