if (document.images) {
	/*
	home_n = new Image();
	home_f = new Image();
	home_n.src = "../images/tnav_home_n.gif";
	home_f.src = "../images/tnav_home_f.gif";
	prod_n = new Image();
	prod_f = new Image();
	prod_n.src = "../images/tnav_prod_n.gif";
	prod_f.src = "../images/tnav_prod_f.gif";
	cons_n = new Image();
	cons_f = new Image();
	cons_n.src = "../images/tnav_cons_n.gif";
	cons_f.src = "../images/tnav_cons_f.gif";
	about_n = new Image();
	about_f = new Image();
	about_n.src = "../images/tnav_about_n.gif";
	about_f.src = "../images/tnav_about_f.gif";
	cont_n = new Image();
	cont_f = new Image();
	cont_n.src = "../images/tnav_cont_n.gif";
	cont_f.src = "../images/tnav_cont_f.gif";
	lnav_n = new Image();
	lnav_f = new Image();
	lnav_n.src = "../images/lp_nav_but_n.gif";
	lnav_f.src = "../images/lp_nav_but_f.gif";
	*/
}
function iOn(imgIn) {
	if (document.images) {
		document[imgIn].src = eval(imgIn + "_n.src");
	}
}    
function iOff(imgIn) {
	if (document.images) {
		document[imgIn].src = eval(imgIn + "_f.src");
	}
}
function lniOn(imgIn) {
	if (document.images) {
		document[imgIn].src = lnav_n.src;
	}
}    
function lniOff(imgIn) {
	if (document.images) {
		document[imgIn].src = lnav_f.src;
	}
}
function popWin(popURL, popName, popWidth, popHeight, popScroll) {
	if (popWidth == null) popWidth = 300;
	if (popHeight == null) popHeight = 200;
	var px = (window.screen.width/2) - (popWidth/2);
	var py = (window.screen.height/2) - (popHeight/2);
	var scl = 0;
	if (popScroll) scl = 1;
	ps = 'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars='+ scl +',resizable=0,innerWidth'+ popWidth +',innerHeight'+ popHeight +',Width='+ popWidth +',Height='+ popHeight +',left='+ px +',screenX='+ px +',top='+ py +',screenY='+ py;
	window.open(popURL,popName,ps);
}