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)";
		document.getElementById(divs[i]).style.visibility = "hidden";
     }
    
     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;

    if (this.nAct == this.nOldAct)
    return false;

  document.getElementById( this.aDivs[this.nAct] ).style.visibility = "visible";
  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 ieop = Math.round( this._easeInOut(this.nTime, 0, 1, this.nDur) * 100 );
    var op = ieop / 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 );
        
  if (this.nOldAct > -1)
       document.getElementById( this.aDivs[this.nOldAct] ).style.visibility = "hidden";    
    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;
}

// 2009. 메인 개편 후 삭제해도 됨 --------------------------------------------------------
function pausescroller(content, divId, divClass, delay){
this.content=content 
this.tickerid=divId 
this.delay=delay
this.mouseoverBol=0 
this.hiddendivpointer=1 
document.write('<div id="'+divId+'" class="'+divClass+'" style="position: relative; overflow: hidden"><div class="innerDiv" style="position: absolute; width: 100%" id="'+divId+'1">'+content[0]+'</div><div class="innerDiv" style="position: absolute; width: 100%; visibility: hidden" id="'+divId+'2">'+content[1]+'</div></div>')
var scrollerinstance=this
if (window.addEventListener)
window.addEventListener("load", function(){scrollerinstance.initialize()}, false)
else if (window.attachEvent)
window.attachEvent("onload", function(){scrollerinstance.initialize()})
else if (document.getElementById)
setTimeout(function(){scrollerinstance.initialize()}, 500)
}


pausescroller.prototype.initialize=function(){
this.tickerdiv=document.getElementById(this.tickerid)
this.visiblediv=document.getElementById(this.tickerid+"1")
this.hiddendiv=document.getElementById(this.tickerid+"2")
this.visibledivtop=parseInt(pausescroller.getCSSpadding(this.tickerdiv))
this.visiblediv.style.width=this.hiddendiv.style.width=this.tickerdiv.offsetWidth-(this.visibledivtop*2)+"px"
this.getinline(this.visiblediv, this.hiddendiv)
this.hiddendiv.style.visibility="visible"
var scrollerinstance=this
document.getElementById(this.tickerid).onmouseover=function(){scrollerinstance.mouseoverBol=1}
document.getElementById(this.tickerid).onmouseout=function(){scrollerinstance.mouseoverBol=0}
if (window.attachEvent)
window.attachEvent("onunload", function(){scrollerinstance.tickerdiv.onmouseover=scrollerinstance.tickerdiv.onmouseout=null})
setTimeout(function(){scrollerinstance.animateup()}, this.delay)
}



pausescroller.prototype.animateup=function(){
var scrollerinstance=this
if (parseInt(this.hiddendiv.style.top)>(this.visibledivtop+5)){
this.visiblediv.style.top=parseInt(this.visiblediv.style.top)-5+"px"
this.hiddendiv.style.top=parseInt(this.hiddendiv.style.top)-5+"px"
setTimeout(function(){scrollerinstance.animateup()}, 50)
}
else{
this.getinline(this.hiddendiv, this.visiblediv)
this.swapdivs()
setTimeout(function(){scrollerinstance.setmessage()}, this.delay)
}
}



pausescroller.prototype.swapdivs=function(){
var tempcontainer=this.visiblediv
this.visiblediv=this.hiddendiv
this.hiddendiv=tempcontainer
}

pausescroller.prototype.getinline=function(div1, div2){
div1.style.top=this.visibledivtop+"px"
div2.style.top=Math.max(div1.parentNode.offsetHeight, div1.offsetHeight)+"px"
}


pausescroller.prototype.setmessage=function(){
var scrollerinstance=this
if (this.mouseoverBol==1)
setTimeout(function(){scrollerinstance.setmessage()}, 100)
else{
var i=this.hiddendivpointer
var ceiling=this.content.length
this.hiddendivpointer=(i+1>ceiling-1)? 0 : i+1
this.hiddendiv.innerHTML=this.content[this.hiddendivpointer]
this.animateup()
}
}

pausescroller.getCSSpadding=function(tickerobj){ 
if (tickerobj.currentStyle)
return tickerobj.currentStyle["paddingTop"]
else if (window.getComputedStyle)
return window.getComputedStyle(tickerobj, "").getPropertyValue("padding-top")
else
return 0
}
//------------------------------------------------------------------------------------------------