function Browser() {
var b=navigator.appName;
if (b.indexOf('Netscape')!=-1) this.b="ns";
else if ((b=="Opera") || (navigator.userAgent.indexOf("Opera")>0)) this.b = "opera";
else if (b=="Microsoft Internet Explorer") this.b="ie";
if (!b) alert('Unidentified browser.\nThis browser is not supported,');
this.version=navigator.appVersion;
this.v=parseInt(this.version);
this.ns=(this.b=="ns" && this.v>=4);
this.ns4=(this.b=="ns" && this.v==4);
this.ns6=(this.b=="ns" && this.v==5);
this.ie=(this.b=="ie" && this.v>=4);
this.ie4=(this.version.indexOf('MSIE 4')>0);
this.ie5=(this.version.indexOf('MSIE 5')>0);
this.ie55=(this.version.indexOf('MSIE 5.5')>0);
this.ie6=(this.version.indexOf('MSIE 6.0')>0);
this.safari=(this.version.indexOf('Safari')>0);
this.opera=(this.b=="opera");
this.dom=(document.createElement && document.appendChild && document.getElementsByTagName)?true:false;
this.def=(this.ie||this.dom); var ua=navigator.userAgent.toLowerCase();
if (ua.indexOf("win")>-1) {
if (ua.indexOf("ce")>-1) this.platform="winCE";
else this.platform="win32";
}
else if (ua.indexOf("mac")>-1) this.platform="mac";
else this.platform="other";
this.easyNotSupported = this.ns4 || this.opera || this.ie4;
this.mac=this.platform=="mac";
this.winCE=this.platform=="winCE";
this.winXP=this.platform=="win32" && ua.indexOf("nt")>-1 && ua.indexOf("5.1")>-1;
}
is=new Browser();