function swapOnMouseOverImage(id_sitemap, lang_)
{	
	var img = "../content/images/sitemap/img_over_" + lang_ + "_" + id_sitemap + ".gif";
	var el = document.getElementById("img_" + id_sitemap);
	el.src = img;
}

function swapOnMouseOutImage(id_sitemap, lang_)
{	
	var img = "../content/images/sitemap/img_" + lang_ + "_" + id_sitemap + ".gif";
	var el = document.getElementById("img_" + id_sitemap);
	el.src = img;
}