var flashinstalled = 0;

var flashversion = 0;

if (navigator.plugins && navigator.plugins.length) {

   x = navigator.plugins["Shockwave Flash"];

   if (x) {

      flashinstalled = 2;

      if (x.description) {

         y = x.description;

         flashversion = y.charAt(y.indexOf('.') - 1);

      }

   }

   else

      flashinstalled = 1;

   if (navigator.plugins["Shockwave Flash 2.0"]) {

      flashinstalled = 2;

      flashversion = 2;

   }

}

else if (navigator.mimeTypes && navigator.mimeTypes.length) {

   x = navigator.mimeTypes['application/x-shockwave-flash'];

   if (x && x.enabledPlugin)

      flashinstalled = 2;

   else

      flashinstalled = 1;

}

if (flashinstalled == 1)
   window.location = 'index.aspx';