var UseFlash = 0;
if (navigator.mimeTypes && navigator.mimeTypes["application/x-shockwave-flash"] ) 
{
var plugin = navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin;
if (plugin) UseFlash = 1;
} 
else if (navigator.appName && navigator.appName.indexOf("Microsoft") != -1 && navigator.userAgent.indexOf("Windows") != -1 && navigator.userAgent.indexOf("Windows 3.1") == -1) 
{
UseFlash = 1;
}