if (document.images){
	var PREFIX = "../";
	var imgoff = new Array();
	var imgon = new Array();
	var iconon = new Array();
	var iconoff = new Image();

	for (var i=0;i<7;i++)
		{
		imgoff[i] = new Image();
		imgon[i] = new Image();
		}
	
	imgoff[0].src = PREFIX + "images/nav/nav_home_off.gif";
	imgoff[1].src = PREFIX + "images/nav/nav_eatingdisorders_off.gif";
	imgoff[2].src = PREFIX + "images/nav/nav_helpresources_off.gif";
	imgoff[3].src = PREFIX + "images/nav/nav_persstories_off.gif";
	imgoff[4].src = PREFIX + "images/nav/nav_aboutshow_off.gif";
	// extension for home page buttons
	imgoff[5].src = PREFIX + "images/home/btn_gethelpnow_off.gif";
	imgoff[6].src = PREFIX + "images/home/btn_friendsfamilyeduc_off.gif";
	
	imgon[0].src = PREFIX + "images/nav/nav_home_over.gif";
	imgon[1].src = PREFIX + "images/nav/nav_eatingdisorders_over.gif";
	imgon[2].src = PREFIX + "images/nav/nav_helpresources_over.gif";
	imgon[3].src = PREFIX + "images/nav/nav_persstories_over.gif";
	imgon[4].src = PREFIX + "images/nav/nav_aboutshow_over.gif";
	// extension for home page buttons	
	imgon[5].src = PREFIX + "images/home/btn_gethelpnow_over.gif";
	imgon[6].src = PREFIX + "images/home/btn_friendsfamilyeduc_over.gif";	
}

function overIt(x)
{
	if (document.images)
	{
		var imgName = "document.nav" + x;
		eval(imgName).src = imgon[x].src;
	}
}

function outOfIt(x)
{
	if (document.images)
	{
		var imgName = "document.nav" + x;
		eval(imgName).src = imgoff[x].src;
	}
}