function clientDetection()
{
	var agt = navigator.userAgent.toLowerCase();
	this.platform = navigator.platform.toLowerCase();
	this.name = agt;
	this.major = parseInt(navigator.appVersion);
	this.minor = parseFloat(navigator.appVersion);
	
	this.nav  = ((agt.indexOf('mozilla')!=-1) && ((agt.indexOf('spoofer')==-1) && (agt.indexOf('compatible') == -1)));
	this.nav2 = (this.nav && (this.major == 2));
	this.nav3 = (this.nav && (this.major == 3));
	this.nav4 = (this.nav && (this.major == 4));
	this.nav6 = (this.nav && (this.major == 5));
	
	this.ie   = (agt.indexOf("msie") != -1);
	this.ie3  = (this.ie && (this.major == 2));
	this.ie4  = (this.ie && (this.major == 4));
	this.opera = (agt.indexOf("opera") != -1);
	this.nav6up = this.nav && (this.major >= 5);
	this.ie4up  = this.ie  && (this.major >= 4);
	this.ie5up  = this.ie  && (this.major >= 5);
	
	var mac = (agt.indexOf("mac")!=-1);
    if (mac){ is_win = !mac; } // dmr - 06/20/2002
}