function swapMap(area)
{
	if(area=="")
	{
//		document.getElementById("worldmap").src = "/images/world-map.gif";
//		document.getElementById("usa").style.background = "url(/images/nav_wm_usa_off.gif)";
//		document.getElementById("row").style.background = "url(/images/nav_wm_row_off.gif)";
		document.getElementById("mapbutton_usa").src = "/images/nav_wm_usa_off.gif";
		document.getElementById("mapbutton_row").src = "/images/nav_wm_row_off.gif";
	}
	else
	{
//		document.getElementById("worldmap").src = "/images/world-map_" + area + ".gif";
//		document.getElementById(area).style.background = "url(/images/nav_wm_" + area + "_on.gif)";
		document.getElementById("mapbutton_" + area).src = "/images/nav_wm_" + area + "_on.gif";
	}
}

function swapImage(id, img)
{
	document.getElementById(id).src = "/images/" + img;	
}