if (navigator.appVersion.substring(0,1) >=3)
{
	nav1		= new Image;
	nav1.src	= "nav1.gif";
	nav2		= new Image;
	nav2.src	= "nav2.gif";
	nav3		= new Image;
	nav3.src	= "nav3.gif";
	nav4		= new Image;
	nav4.src	= "nav4.gif";
	nav5		= new Image;
	nav5.src	= "nav5.gif";
	nav6		= new Image;
	nav6.src	= "nav6.gif";
	nav7		= new Image;
	nav7.src	= "nav7.gif";
	roll1		= new Image;
	roll1.src	= "nav1_a.gif";
	roll2		= new Image;
	roll2.src	= "nav2_a.gif";
	roll3		= new Image;
	roll3.src	= "nav3_a.gif";
	roll4		= new Image;
	roll4.src	= "nav4_a.gif";
	roll5		= new Image;
	roll5.src	= "nav5_a.gif";
	roll6		= new Image;
	roll6.src	= "nav6_a.gif";
	roll7		= new Image;
	roll7.src	= "nav7_a.gif";
}

function rollover(imgid,imgnew) 
{
	if (navigator.appVersion.substring(0,1) >= 3) document.images[imgid].src=eval(imgnew + ".src");
}

function show(id)
{

	rollover("nav"+id,"roll"+id);
	if (navigator.appVersion.substring(0,1) >= 4) {
		if(document.documentElement) {
			document.getElementById("subnav"+id).style.visibility = "visible";
			return true;
		}
		else if (document.all) {
			document.all["subnav"+id].style.visibility = "visible";
			return true;
		}
		else if (document.layers) {
			document.layers["subnav"+id].visibility = "show";
			return true;
		}
	}

}

function hide2(id2) 
{

	rollover("nav"+id2,"nav"+id2);
	if (navigator.appVersion.substring(0,1) >= 4) {
		if(document.documentElement) {
			document.getElementById("subnav"+id2).style.visibility = "hidden";
			return true;
		}
		else if (document.all) {
			document.all["subnav"+id2].style.visibility = "hidden";
			return true;
		}
		else if (document.layers) {
			document.layers["subnav"+id2].visibility = "hide";
			return true;
		}
	}

}

function hide(id) 
{
	timeOut = setTimeout("hide2("+id+")", 10);
}

function stop() 
{
	clearTimeout(timeOut);
}