function tdOver(obj) {
		
	obj.className = "nav_over";
	
	doImgOver(document.all['bullet_' + getCatID(obj)]);

}

function tdOut(obj) {

	obj.className = "nav";
	
	doImgOut(document.all['bullet_' + getCatID(obj)]);
	
}

function tdDown(obj) {

	obj.className = "nav_down";
	
}

function tdUp(obj) {

	obj.className = "nav_over";

}

function tdClick(obj) {

	tdUp(obj);
	
	if (obj.id == "cat_hp") {
		location.href = "http://www.hyundaiperformance.com";
	} else {
		location.href = "/shop/cat.php?c=" + getCatID(obj);
	}
	
}

function getCatID(obj) {

	return obj.id.substr(4);

}