var requiredMajorVersion = 9; 
var requiredMinorVersion = 0; 
var requiredRevision = 115

var Version = new Object;
a = navigator.userAgent;
ie = a.indexOf("MSIE");

Version.Netscape = a.indexOf("Gecko")+1 ?
parseFloat(a.substring(a.lastIndexOf("/")+1))
: a.indexOf("Mozilla")+1 && !(ie+1) ?
parseFloat(a.substring(a.indexOf("/")+1,a.indexOf(" ")))
: 0;

Version.MSIE = ie+1
? parseFloat(a.substring(ie+5,a.indexOf(";",ie+5)))
: 0;

Version.JavaScript = window.clearInterval ? 1.2 : window.blur ? 1.1 : 1.0;

delete a;
delete ie;

Version.IE = function(V) { return((V <= this.MSIE) || (!V && this.MSIE) ? true : false); }
Version.JS = function(V) { return( V <= this.JavaScript ? true : false); }
Version.NS = function(V) { return((V <= this.Netscape) || (!V && this.Netscape) ? true : false); }