// JavaScript 

var hboxname = "navH";

function func_location(hnumber){
	var himgs = document.getElementById(hboxname).getElementsByTagName("img");
	if(himgs[hnumber].getAttribute("src").match("_off.")){
		himgs[hnumber].setAttribute("src", himgs[hnumber].getAttribute("src").replace("_off.", "_on."));
	}
};