function BrowserDetectLite() {
 var ua = navigator.userAgent.toLowerCase(); 
 this.isGecko = (ua.indexOf('gecko') != -1 && ua.indexOf('safari') == -1);
 this.isMozilla = (this.isGecko && ua.indexOf('gecko/') + 14 == ua.length);
 this.isNS = ( (this.isGecko) ? (ua.indexOf('netscape') != -1) : ( (ua.indexOf('mozilla') != -1) && (ua.indexOf('spoofer') == -1) && (ua.indexOf('compatible') == -1) && (ua.indexOf('opera') == -1) && (ua.indexOf('webtv') == -1) && (ua.indexOf('hotjava') == -1) ) );
 this.isIE = ( (ua.indexOf('msie') != -1) && (ua.indexOf('opera') == -1) && (ua.indexOf('webtv') == -1) ); 
 this.isSafari = (ua.indexOf('safari') != - 1);
 this.isOpera = (ua.indexOf('opera') != -1); 
 this.isKonqueror = (ua.indexOf('konqueror') != -1 && !this.isSafari); 
 this.isIcab = (ua.indexOf('icab') != -1); 
 this.isAol = (ua.indexOf('aol') != -1); 
 this.isIECompatible = ( (ua.indexOf('msie') != -1) && !this.isIE);
 this.isNSCompatible = ( (ua.indexOf('mozilla') != -1) && !this.isNS && !this.isMozilla);
 this.versionMinor = parseFloat(navigator.appVersion); 
 if ((this.isNS && this.isGecko) || (this.isSafari)){
	this.versionMinor = parseFloat( ua.substring( ua.lastIndexOf('/') + 1 ) );
 }
 else if (this.isIE && this.versionMinor >= 4) {
	this.versionMinor = parseFloat(ua.substring(ua.indexOf('msie ')+5));
 }
 else if (this.isMozilla) {
	this.versionMinor = parseFloat(ua.substring(ua.indexOf('rv:')+3));
 }
 else if (this.isOpera) {
	if (ua.indexOf('opera/') != -1) {
	 this.versionMinor = parseFloat(ua.substring(ua.indexOf('opera/')+6));
	}
	else {
	 this.versionMinor = parseFloat(ua.substring(ua.indexOf('opera ')+6));
	}
 }
 else if (this.isKonqueror) {
	this.versionMinor = parseFloat(ua.substring(ua.indexOf('konqueror/')+10));
 }
 else if (this.isIcab) {
	if (ua.indexOf('icab/') != -1) {
	 this.versionMinor = parseFloat(ua.substring(ua.indexOf('icab/')+6));
	}
	else {
	 this.versionMinor = parseFloat(ua.substring(ua.indexOf('icab ')+6));
	}
 }
 this.versionMajor = parseInt(this.versionMinor); 
 this.geckoVersion = ( (this.isGecko) ? ua.substring( (ua.lastIndexOf('gecko/') + 6), (ua.lastIndexOf('gecko/')+14) ) : -1 );
 this.isDOM1 = (document.getElementById);
 this.isDOM2Event = (document.addEventListener && document.removeEventListener);
 this.mode = document.compatMode ? document.compatMode : 'BackCompat';
 this.isWin = (ua.indexOf('win') != -1);
 this.isWin32 = (this.isWin && ( ua.indexOf('95') != -1 || ua.indexOf('98') != -1 || ua.indexOf('nt') != -1 || ua.indexOf('win32') != -1 || ua.indexOf('32bit') != -1 || ua.indexOf('xp') != -1) );
 this.isMac = (ua.indexOf('mac') != -1);
 this.isUnix = (ua.indexOf('unix') != -1 || ua.indexOf('sunos') != -1 || ua.indexOf('bsd') != -1 || ua.indexOf('x11') != -1)
 this.isLinux = (ua.indexOf('linux') != -1);
 this.isNS4x = (this.isNS && this.versionMajor == 4);
 this.isNS40x = (this.isNS4x && this.versionMinor < 4.5);
 this.isNS47x = (this.isNS4x && this.versionMinor >= 4.7);
 this.isNS4up = (this.isNS && this.versionMinor >= 4);
 this.isNS6x = (this.isNS && this.versionMajor == 6);
 this.isNS6up = (this.isNS && this.versionMajor >= 6);
 this.isNS7x = (this.isNS && this.versionMajor == 7);
 this.isNS7up = (this.isNS && this.versionMajor >= 7);
 this.isIE4x = (this.isIE && this.versionMajor == 4);
 this.isIE4up = (this.isIE && this.versionMajor >= 4);
 this.isIE5x = (this.isIE && this.versionMajor == 5);
 this.isIE55 = (this.isIE && this.versionMinor == 5.5);
 this.isIE5up = (this.isIE && this.versionMajor >= 5);
 this.isIE6x = (this.isIE && this.versionMajor == 6);
 this.isIE6up = (this.isIE && this.versionMajor >= 6);
 this.isIE4xMac = (this.isIE4x && this.isMac);
}
var browser = new BrowserDetectLite();