function home_on()
{
	document.images["home"].src = "/gfx/i.home_on.gif" ;
}
function home_off()
{
	document.images["home"].src = "/gfx/i.home_off.gif" ;
}



function sitemap_on()
{
	document.images["sitemap"].src = "/gfx/i.sitemap_on.gif" ;
}
function sitemap_off()
{
	document.images["sitemap"].src = "/gfx/i.sitemap_off.gif" ;
}



function contact_on()
{
	document.images["contact"].src = "/gfx/i.contact_on.gif" ;
}
function contact_off()
{
	document.images["contact"].src = "/gfx/i.contact_off.gif" ;
}