var g_bIE5orHigher = false;
var g_bIE55 = false;
var g_bIE6orHigher = false;
var g_bWindows = false;
var g_bWin9X = false;
var g_bWin2K = false;
var g_bWinXP = false;
SniffBrowser();
function SniffBrowser(){
var c_sMSIE = "MSIE";
var c_sMSIE_55 = "MSIE 5.5";
var c_sOpera = "OPERA";
var c_sWindows = "WINDOWS";
var c_sWindows95 = "WINDOWS 95";
var c_sWindows98 = "WINDOWS 98";
var c_sWindowsNT = "WINDOWS NT";
var sUA = String(navigator.userAgent).toUpperCase();
var nMSIE = parseInt(sUA.indexOf(c_sMSIE));
var nOpera = parseInt(sUA.indexOf(c_sOpera));
if (nMSIE != -1 && nOpera == -1){
g_bIE5orHigher = (parseInt(sUA.charAt(nMSIE + c_sMSIE.length + 1)) >= 5) ? true : false;
g_bIE6orHigher = (parseInt(sUA.charAt(nMSIE + c_sMSIE.length + 1)) >= 6) ? true : false;
g_bIE55 = (sUA.indexOf(c_sMSIE_55) != -1) ? true : false;}
g_bWindows = (sUA.indexOf(c_sWindows) != -1) ? true : false;
g_bWin9X = ((sUA.indexOf(c_sWindows95) != -1) ||(sUA.indexOf(c_sWindows98) != -1)) ? true : false;
var nWindowsNT = parseInt(sUA.indexOf(c_sWindowsNT));
if (nWindowsNT != -1){
var sNTVer = sUA.substr(nWindowsNT + c_sWindowsNT.length + 1, 3);
g_bWin2K = (sNTVer == "5.0") ? true : false;
g_bWinXP = (sNTVer == "5.1") ? true : false;}
}