if (document.images) {
	var PreLoad = {
		oproduct1: new Image(),
		oproduct2: new Image(),
		pshowcase1: new Image(),
		pshowcase2: new Image(),
		ideas1: new Image(),
		ideas2: new Image(),
		find1: new Image(),
		find2: new Image(),
		about1: new Image(),
		about2: new Image(),
		commercial1: new Image(),
		commercial2: new Image()
	};
	with (PreLoad) {
		oproduct1.src = "/images/interior/sw_int_nav01a.gif"
		oproduct2.src = "/images/interior/sw_int_nav01b.gif"
		pshowcase1.src = "/images/interior/sw_int_nav02a.gif";
		pshowcase2.src = "/images/interior/sw_int_nav02b.gif";
		ideas1.src = "/images/interior/sw_int_nav03a.gif";
		ideas2.src = "/images/interior/sw_int_nav03b.gif";
		find1.src = "/images/interior/sw_int_nav04a.gif";
		find2.src = "/images/interior/sw_int_nav04b.gif";
		about1.src = "/images/interior/sw_int_nav05a.gif";
		about2.src = "/images/interior/sw_int_nav05b.gif";
		commercial1.src = "/images/interior/sw_int_nav06a.gif";
		commercial2.src = "/images/interior/sw_int_nav06b.gif";
	}
}
function hiLitePre(name, source) {
	if (document.images) {
		document.images[name].src = PreLoad[source].src
	}
}

function initNav() {
	if ( !(document.getElementById && document.getElementsByTagName) ) return;
	var root = document.getElementById('nav');
	var links = root.getElementsByTagName('a');
	for (var i=0, a; a=links[i]; i++){
		if (a.getAttribute('MenuId')) {
			a.onmouseover = function() { var ro = this.getAttribute('RollId'); hiLitePre(ro, ro+'2'); showLayer(this.getAttribute('MenuId'), getOffsetLeft(this)-2); };
			a.onmouseout = function() { var ro = this.getAttribute('RollId'); hiLitePre(ro, ro+'1'); showLayer(''); };
		}
		else {
			a.onmouseover = function() { var ro = this.getAttribute('RollId'); hiLitePre(ro, ro+'2'); };
			a.onmouseout = function() { var ro = this.getAttribute('RollId'); hiLitePre(ro, ro+'1'); };
		}
	}
}