javascript取得get方式の参考

(function(){
	var get = window.$_GET = {};
	var args = location.search.replace('?','').split('&');
	for(var i=0,j=args.length,temp;i		temp = args[i].split('=');
		get[temp[0]] = temp[1];
	}
})();
//                  $_GET['xxx']   ?        

//      
if(!$_GET['arg1'])location.href = "?arg1=111&arg2=4545454545";
for(var p in $_GET){
	document.getElementById('log').innerHTML += '  '+p+'   ：'+$_GET[p]+'
';
}