myUserAgent = navigator.userAgent.toLowerCase();
var moz = !(myUserAgent.indexOf('compatible')>0); // includes ns3, ns4, ns6, cam & mfb.
if (moz) {
  document.write('<style type="text/css">');
	document.write('<!--');
	document.write('html {  height: 100%;  }');
	document.write('-->');
	document.write('</style>');
}