// Damian Gajda 1999. Based on Eric Krock code.
// Permission granted to reuse and distribute.
function browserVersion() {
	var agt = navigator.userAgent.toLowerCase();

	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.nav4up = this.nav && (this.major >= 4);

	this.navonly = (this.nav && (agt.indexOf(";nav") != -1));

	this.ie     = (agt.indexOf("msie") != -1);
	this.ie4up  = this.ie  && (this.major >= 4);

	this.opera = (agt.indexOf("opera") != -1);

	this.ver4up = (this.ie4up || this.nav4up );
}

var browserVersion = new browserVersion();

var jslock = 0;	// enable layeranim&hilite functions