browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
	if(browserName=="Netscape" && browserVer >= 3) ver = "yes";
	else ver = "yes";
	if(ver == "yes") {

	
	// topbar
		
	topbar_forum_sitemap1 = new Image(); topbar_forum_sitemap1.src ="images/topbar_forum_sitemap_up.gif";
	topbar_forum_sitemap2 = new Image(); topbar_forum_sitemap2.src ="images/topbar_forum_sitemap_down.gif";

	topbar_forum_pubblicita1 = new Image(); topbar_forum_pubblicita1.src ="images/topbar_forum_pubblicita_up.gif";
	topbar_forum_pubblicita2 = new Image(); topbar_forum_pubblicita2.src ="images/topbar_forum_pubblicita_down.gif";

	topbar_forum_home_page1 = new Image(); topbar_forum_home_page1.src ="images/topbar_forum_home_page_up.gif";
	topbar_forum_home_page2 = new Image(); topbar_forum_home_page2.src ="images/topbar_forum_home_page_down.gif";

	topbar_forum_contacts1 = new Image(); topbar_forum_contacts1.src ="images/topbar_forum_contacts_up.gif";
	topbar_forum_contacts2 = new Image(); topbar_forum_contacts2.src ="images/topbar_forum_contacts_down.gif";
	
	

	}
function active(imgName)
{
	if (ver == "yes")  {
	img1 = eval(imgName + "1.src");
	document [imgName].src = img1;
	}}
function inactive(imgName)
{
	if (ver == "yes")  {
	img2 = eval(imgName + "2.src");
	document [imgName].src = img2;
	}}