var useBSNns;if (useBSNns){	if (typeof(bsn) == "undefined")		bsn = {}	var _bsn = bsn;}else{	var _bsn = this;}_bsn.Crossfader = function (divs, fadetime, delay ){		this.nAct = -1;	this.aDivs = divs;		for (var i=0;i<divs.length;i++)	{		document.getElementById(divs[i]).style.opacity = 0;		document.getElementById(divs[i]).style.position = "absolute";		document.getElementById(divs[i]).style.filter = "alpha(opacity=0)";	}		this.nDur = fadetime;	this.nDelay = delay;			this._newfade();}_bsn.Crossfader.prototype._newfade = function(){	if (this.nID1)		clearInterval(this.nID1);		this.nOldAct = this.nAct;	this.nAct++;	if (!this.aDivs[this.nAct])	this.nAct = 0;		this.nInt = 50;	this.nTime = 0;		var p=this;	this.nID2 = setInterval(function() { p._fade() }, this.nInt);}_bsn.Crossfader.prototype._fade = function(){	this.nTime += this.nInt;		var op = this._easeInOut(this.nTime, 0, 1, this.nDur);	var ieop = op*100;	document.getElementById( this.aDivs[this.nAct] ).style.opacity = op;	document.getElementById( this.aDivs[this.nAct] ).style.filter = "alpha(opacity="+ieop+")";	if (this.nOldAct > -1)	{		document.getElementById( this.aDivs[this.nOldAct] ).style.opacity = 1 - op;		document.getElementById( this.aDivs[this.nOldAct] ).style.filter = "alpha(opacity="+(100 - ieop)+")";	}		if (this.nTime == this.nDur)	{		clearInterval( this.nID2 );				var p=this;		this.nID1 = setInterval(function() { p._newfade() }, this.nDelay);	}}_bsn.Crossfader.prototype._easeInOut = function(t,b,c,d){	return c/2 * (1 - Math.cos(Math.PI*t/d)) + b;}