if (document.images) 
{
	AboutOn=new Image();
	AboutOn.src=imgDir + "overAbout.gif";
	AboutOff=new Image();
	AboutOff.src=imgDir + "underAbout.gif";

	ListingsOn=new Image();
	ListingsOn.src=imgDir + "overListings.gif";
	ListingsOff=new Image();
	ListingsOff.src=imgDir + "underListings.gif";

	SoldOn=new Image();
	SoldOn.src=imgDir + "overSold.gif";
	SoldOff=new Image();
	SoldOff.src=imgDir + "underSold.gif";

	ContactOn=new Image();
	ContactOn.src=imgDir + "overContact.gif";
	ContactOff=new Image();
	ContactOff.src=imgDir + "underContact.gif";

	ResourcesOn=new Image();
	ResourcesOn.src=imgDir + "overResources.gif";
	ResourcesOff=new Image();
	ResourcesOff.src=imgDir + "underResources.gif";
}

function doOver(nav) {
	if(document.images)
	{
	document.images[nav].src=eval(nav+"On.src");
	}
}

function doOut(nav) {
	if(document.images)
	{
	document.images[nav].src=eval(nav+"Off.src");
	}
}