var agent = navigator.userAgent;
if (agent.indexOf("Opera") > -1) {
agent = "Opera";
} else if (navigator.appName == "Microsoft Internet Explorer") {
agent = "Microsoft Internet Explorer";
} else if (navigator.appName == "Netscape") {
agent = "Netscape";
}
if (agent == "Netscape") {
document.writeln(""); }
if (agent == "Microsoft Internet Explorer") {
document.writeln(""); }
if (agent == "Opera") {
document.writeln(""); }
document.writeln("");