function imagechange(imagePath,imageID,imageName) 
{
   document.images[imageID].src = imagePath + "images/" + imageName + ".gif";
}


function m_on(imagename)
{
	if (document.images)
	{
		document [imagename].src = eval(imagename + "_MO.src");
	}
}

function m_out(imagename)
{
	if (document.images)
	{
		document [imagename].src = eval(imagename + ".src");
	}
}

if (document.images)
	{
		home = new Image();
		home.src = "images/button_home_off.gif";
		home_MO = new Image();
		home_MO.src = "images/button_home_on.gif";
		
		carved = new Image();
		carved.src = "images/button_carved_off.gif";
		carved_MO = new Image();
		carved_MO.src = "images/button_carved_on.gif";
		
		other = new Image();
		other.src = "images/button_other_off.gif";
		other_MO = new Image();
		other_MO.src = "images/button_other_on.gif";
		
		vehicles = new Image();
		vehicles.src = "images/button_vehicles_off.gif";
		vehicles_MO = new Image();
		vehicles_MO.src = "images/button_vehicles_on.gif";
		
		municipal = new Image();
		municipal.src = "images/button_municipal_off.gif";
		municipal_MO = new Image();
		municipal_MO.src = "images/button_municipal_on.gif";
		
		map = new Image();
		map.src = "images/button_map_off.gif";
		map_MO = new Image();
		map_MO.src = "images/button_map_on.gif";
		
		about = new Image();
		about.src = "images/button_about_off.gif";
		about_MO = new Image();
		about_MO.src = "images/button_about_on.gif";
	}