// JavaScript Document

function $(e) {
	return (typeof e=='object' ? e : document.getElementById(e))
}

function countRadio(n) {
	var count=0;
	var radio = document.getElementsByName(n);
	var len = radio.length;
	
	for(var i=0; i<len; i++){
		if(radio[i].checked) count++;
	}
	return count;
}