var browser;

if (document.all) {

browser = "Microsoft Internet Explorer";
}
else if (document.layers) {

browser = "Netscape Communicator";
}
else if (document.getElementById) {

browser = "Netscape 6 or newer";
}
else {

browser = "Other than Netscape or IE.";
}

var wminst = false;

var isIE = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false; // true if we're on ie
var isWin = (navigator.appVersion.indexOf("Windows") != -1) ? true : false; // true if we're on windows
if(isIE && isWin){ // don't write vbscript tags on anything but ie win

document.write('<SCR' + 'IPT LANGUAGE=VBScript\> \n');
document.write('on error resume next \n');
document.write('wminst = IsObject(CreateObject("MediaPlayer.MediaPlayer.1")) \n');
document.write('</SCR' + 'IPT\> \n'); // break up end tag so it doesn't end our script
}

if (browser=="Netscape Communicator" || browser=="Netscape 6 or newer") {

numPlugins = navigator.plugins.length;
for (i = 0; i < numPlugins; i++) {

plugin = navigator.plugins[i];
if (plugin.name.indexOf("Windows Media Services")!=-1) {

wminst=true;
}
}
}