var br_name	= navigator.appName;
		var br_ver	= parseFloat(navigator.appVersion);
		var version = "n2";
		if ((br_name == "Netscape" && br_ver >= 4.0)||(br_name == "Microsoft Internet Explorer" && br_ver >= 4.0))
			version = "n3";

		var Preload;
		if (document.images && version == "n3") {
			Preload = new Array();
			images = new Array( "m_arch_on", "m_art_on", "m_bus_on", "m_home_on", 
								"m2_about_on", "m2_client_on", "m2_cont_on", "m2_join_on", "m2_water_on", "m2_getquote_on"
								);
			for(i in images)
			{
				Preload[images[i]] = new Image;
				Preload[images[i]].src = "img/" + images[i] + ".gif";
			}
		}
	
		function s(Item) {
			if (document.images && version == "n3") {
				document.images[Item].src = Preload[Item + "_on"].src;
			}
		}
		
		
		function h(Item) {
			if (document.images && version == "n3") {
				document.images[Item].src = "img/" + Item + ".gif";
			}
		}