function imageswap (target, e) 
{
	if (!document.images)
		return;
	var type = e.type;
	var path = target.src.substring(0, target.src.lastIndexOf("."));
	var ext = target.src.substring(target.src.lastIndexOf("."));
	if (type == "mouseover" && path.substr(path.length - 2) != "_a")
		target.src = path + "_a" + ext;
	else if (type == "mouseout" && path.substr(path.length - 2) == "_a")
		target.src = path.substring(0, path.length - 2) + ext;
	return;
}

function imagepreload (depth)
{
	var path = "";
	if (depth == 0 || depth == undefined)
		path = "./";
	else
		for (var i = 0; i < depth; i++)
			path += "../";

	var preloadImage1 = new Image();
	preloadImage1.src = path + "images/" + "header_about_a.gif";
	var preloadImage2 = new Image();
	preloadImage2.src = path + "images/" + "header_contact_a.gif";
	var preloadImage3 = new Image();
	preloadImage3.src = path + "images/" + "header_home_a.gif";
	var preloadImage4 = new Image();
	preloadImage4.src = path + "images/" + "nav_copyright_a.gif";
	var preloadImage5 = new Image();
	preloadImage5.src = path + "images/" + "nav_humor_a.gif";
	var preloadImage6 = new Image();
	preloadImage6.src = path + "images/" + "nav_issue1_a.gif";
	var preloadImage7 = new Image();
	preloadImage7.src = path + "images/" + "nav_issue2_a.gif";
	var preloadImage8 = new Image();
	preloadImage8.src = path + "images/" + "nav_issue3_a.gif";
	var preloadImage9 = new Image();
	preloadImage9.src = path + "images/" + "nav_issue4_a.gif";
	var preloadImage10 = new Image();
	preloadImage10.src = path + "images/" + "nav_issue5_a.gif";
	var preloadImage11 = new Image();
	preloadImage11.src = path + "images/" + "nav_issue6_a.gif";
	var preloadImage12 = new Image();
	preloadImage12.src = path + "images/" + "nav_links_a.gif";
	var preloadImage13 = new Image();
	preloadImage13.src = path + "images/" + "nav_new_a.gif";
	var preloadImage14 = new Image();
	preloadImage14.src = path + "images/" + "nav_requests_a.gif"; 
}