var ns4,ie4,doc;

function Init()
{
	ns4=(document.layers)?true:false;
	ie4=(document.all)?true:false;
	doc=window.top.frames["Navbar"].document;
}

function show(id)

{
	if (ns4) document.layers[id].visibility="show";
    	else if (ie4) document.all[id].style.visibility="visible";
	return true;
}

function hide(id)
{
	if (ns4) document.layers[id].visibility="hide";
	else if (ie4) document.all[id].style.visibility="hidden";
	return true;
}

function preload(imgObj,imgSrc) {
           if (document.images) {
                   eval(imgObj+' = new Image()');
                   eval(imgObj+'.src = "'+imgSrc+'"');
           }
   }
function preLoadImages()
{
	preload('menuhomelo','./images/menuhome_lo.jpg');
	preload('menukomitlo','./images/menukomit_lo.jpg');
	preload('menuorglo','./images/menuorg_lo.jpg');
	preload('menumediaslo','./images/menumedias_lo.jpg');
	preload('menuchurchlo','./images/menuchurch_lo.jpg');
	preload('menubusinesslo','./images/menubusiness_lo.jpg');
	preload('menunewslo','./images/menunews_lo.jpg');
	preload('menuartlo','./images/menuart_lo.jpg');

	preload('menuhomehi','./images/menuhome_hi.jpg');
	preload('menukomithi','./images/menukomit_hi.jpg');
	preload('menuorghi','./images/menuorg_hi.jpg');
	preload('menumediashi','./images/menumedias_hi.jpg');
	preload('menuchurchhi','./images/menuchurch_hi.jpg');
	preload('menubusinesshi','./images/menubusiness_hi.jpg');
	preload('menunewshi','./images/menunews_hi.jpg');
	preload('menuarthi','./images/menuart_hi.jpg');
	return true;
}

function swapImage(imgName,imgObj)
{
	if (document.images)
	{
        	if (document.layers) eval('document.Navbar.document.images["'+imgName+'"].src = '+imgObj+'.src');
                else document.images[imgName].src = eval(imgObj+".src");
        }
	return true;
}