document.write('<script type="text/javascript" src="/jscript/jquery.js"></script>');

function using(js) {
	if(typeof js == "undefined") return false;

	if(typeof js == "string") {
		if(js.search(",") != "-1") {
			var arr = js.split(",");
			for(var i = 0; i < arr.length; i++) {
                	document.write('<script type="text/javascript" src="/jscript/jquery.'+ $.trim(arr[i]) +'.js"></script>');
		}
	} else {
		document.write('<script type="text/javascript" src="/jscript/jquery.'+ $.trim(js) +'.js"></script>');
        }
	}
}