is = new check_browser()
var useEvents = false;

function check_browser() {
	var brows;
	var agt;

	this.b = null;
	this.v = null;

	brows = navigator.appName;
	if (brows=="Netscape") {this.b = "ns";}
	else if (brows=="Microsoft Internet Explorer") {this.b = "ie";}
	else {this.b = b;}

	this.version = navigator.appVersion
	this.v = parseInt(this.version)*10

	this.ns = (this.b=="ns" && this.v>=40)
	this.ns4 = (this.b=="ns" && this.v>=40 && this.v<50)
	this.ns40 = (this.b=="ns" && this.v==40)
	this.ns45 = (this.b=="ns" && this.v==45)
	this.ns46 = (this.b=="ns" && this.v==45)
	this.ns47 = (this.b=="ns" && this.v==47)
	this.ns5 = (this.b=="ns" && this.v>=50)
	this.ns50 = (this.b=="ns" && this.v==50)

	this.ie = (this.b=="ie" && this.v>=40)
	this.ie40 = (navigator.userAgent.indexOf('MSIE 4.0')>0)
	this.ie45 = (navigator.userAgent.indexOf('MSIE 4.5')>0)
	this.ie50 = (navigator.userAgent.indexOf('MSIE 5.0')>0)
	this.ie55 = (navigator.userAgent.indexOf('MSIE 5.5')>0)
	this.ie6 = (navigator.userAgent.indexOf('MSIE 6.0')>0)

	if ((this.ie40)||(this.ie45)) {this.ie4=true}
	if ((this.ie50)||(this.ie55)) {this.ie5=true}

	this.min = (this.ns||this.ie)

	agt = navigator.userAgent.toLowerCase()
	this.opera = (agt.indexOf('opera')>0)
	if (this.opera) {
		this.opera5 = ((agt.indexOf("opera 5")>0) || (agt.indexOf("opera/5")>0))
		return
	}
	this.mac    = (agt.indexOf("mac")>0)
	this.mac68k = (this.mac && ((agt.indexOf("68k")>0) || (agt.indexOf("68000")>0)))
	this.macppc = (this.mac && ((agt.indexOf("ppc")>0) || (agt.indexOf("powerpc")>0)))

	this.DOM = (document.getElementById ? true : false)
	this.Dyn = (this.DOM || this.ie4 || this.ns4)
	if (document.addEventListener && document.removeEventListener) this.dom2events = true
	return
}