browser_name = navigator.appName;
browser_version = parseFloat(navigator.appVersion);
if (browser_name == "Netscape" && browser_version >= 3.0) { roll = "true"; }
else if (browser_name == "Microsoft Internet Explorer" && browser_version >= 3.0) { roll = "true"; }
else if (browser_name == "Opera" && browser_version >= 3.0) { roll = "true"; }
else { roll = "false"; }
function over(img,ref) { if (roll == "true") { document.images[img].src = ref; } }
function out(img,ref)  { if (roll == "true") { document.images[img].src = ref; } }
function show(file) {window.open("http://"+file, "_blank");}
function secure(un,sa,dm) {if(dm==1){w=window.open("mailto:"+un+"@"+sa+".ru");}}