function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		BottIntro_over = newImage("images/bottomNav/Intro_over.gif");
		Bottoverview_over = newImage("images/bottomNav/overview_over.gif");
		Bottfeatures_over = newImage("images/bottomNav/features_over.gif");
		Bottdesign_over = newImage("images/bottomNav/design_over.gif");
		Botthow_over = newImage("images/bottomNav/how_over.gif");
		Bottwhere_over = newImage("images/bottomNav/where_over.gif");
		intro1_over = newImage("images/Mainmenu/intro1_over.gif");
		overview1_over = newImage("images/Mainmenu/overview1_over.gif");
		features1_over = newImage("images/Mainmenu/features1_over.gif");
		design1_over = newImage("images/Mainmenu/design1_over.gif");
		how1_over = newImage("images/Mainmenu/how1_over.gif");
		where1_over = newImage("images/Mainmenu/where1_over.gif");
		preloadFlag = true;
	}
}

function keepOneOff(toporbott)
{
		eval("document." + "bott" + menuPage + ".src = \"images/bottomNav/bott" + menuPage + ".gif\";");											
}
	
function keepOneLit(toporbott)
{
	if(toporbott == 'top')
	{
		if(menuPage != "Intro")
		{
			eval("document." + "top" + menuPage + ".src = \"images/topNav/top" + menuPage + "_over.gif\";");	
		}
	}
	else
	{
		eval("document." + "bott" + menuPage + ".src = \"images/bottomNav/bott" + menuPage + "_over.gif\";");											
	}
}

function setStartImage(menufeature)
	{
		eval("document." + "bott" + menufeature + ".src = \"images/bottomNav/bott" + menufeature + "_over.gif\";");											
	}