function Browseris () {

	var agt = navigator.userAgent.toLowerCase();
	this.major = parseInt(navigator.appVersion);
	
	this.ie = (agt.indexOf("msie")!=-1);
	this.aol = this.ie && agt.indexOf(" aol ")!=-1;
	if (this.ie)
		{
		var stIEVer = agt.substring(agt.indexOf("msie ") + 5);
		this.iever = parseInt(stIEVer);
		this.verIEFull = parseFloat(stIEVer);
		}
	else
		this.iever = 0;
	this.ie3 = ( this.ie && (this.major == 2));
	this.ie4 = ( this.ie && (this.major == 4));
	this.ie4up = this.ie && (this.major >=4);
	this.ie5up = this.ie && (this.iever >= 5);
	
	 this.mac    = (agt.indexOf("mac")!=-1);
	
	 this.win98 = ((agt.indexOf("win98")!=-1)||(agt.indexOf("windows 98")!=-1));
   	 this.win95 = ((agt.indexOf("win95")!=-1)||(agt.indexOf("windows 95")!=-1));
    	 this.winnt = ((agt.indexOf("winnt")!=-1)||(agt.indexOf("windows nt")!=-1));

 	  this.win32 = this.win95 || this.winnt || this.win98 || 
                 ((this.major >= 4) && (navigator.platform == "Win32")) ||
                 (agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1);
 
}


var browseris = new Browseris();