function ClientSnifferJr(){
this.ua=navigator.userAgent.toLowerCase();
this.major=parseInt(navigator.appVersion);
this.minor=parseFloat(navigator.appVersion);
if (document.addEventListener && document.removeEventListener) this.dom2events=true;
if (document.getElementById) this.dom1getbyid=true;
if (window.opera){
this.opera=true;
this.opera5=(this.ua.indexOf("opera 5") !=-1 || this.ua.indexOf("opera/5") !=-1);
this.opera6=(this.ua.indexOf("opera 6") !=-1 || this.ua.indexOf("opera/6") !=-1);
this.opera5or6=this.opera5 || this.opera6;
this.opera7=(this.ua.indexOf("opera 7") !=-1 || this.ua.indexOf("opera/7") !=-1);
return;
}
this.konq=this.ua.indexOf('konqueror') !=-1;
this.ie=this.ua.indexOf('msie') !=-1;
if (this.ie){
this.ie3=this.major < 4;
this.ie4=(this.major==4 && this.ua.indexOf('msie 5')==-1 && this.ua.indexOf('msie 6')==-1);
this.ie4up=this.major >=4;
this.ie5=(this.major==4 && this.ua.indexOf('msie 5.0') !=-1);
this.ie5up=!this.ie3 && !this.ie4;
this.ie6=(this.major==4 && this.ua.indexOf('msie 6.0') !=-1);
this.ie6up=(!this.ie3 && !this.ie4 && !this.ie5 && this.ua.indexOf("msie 5.5")==-1);
return;
}
this.hotjava=this.ua.indexOf('hotjava') !=-1;
this.webtv=this.ua.indexOf('webtv') !=-1;
this.aol=this.ua.indexOf('aol') !=-1;
if (this.hotjava || this.webtv || this.aol) return;
// Gecko, NN4, and NS6
this.gecko=this.ua.indexOf('gecko') !=-1;
this.nav=(this.ua.indexOf('mozilla') !=-1 && this.ua.indexOf('spoofer')==-1 && this.ua.indexOf('compatible')==-1);
if (this.nav){
this.nav4=this.major==4;
this.nav4up=this.major >=4;
this.nav5up=this.major >=5;
this.nav6=this.major==5;
this.nav6up=this.nav5up;
}
}
window.is=new ClientSnifferJr();
// End cbe_core.js
from
http://www.cross-browser.com/