var isNav, isIE
var width = 11;     // == imgA.style.width
var height = 16;
var scaleX = 11;
var offsetX;

var pVol_top = 100;
var vminX;      // == imgA.style.left
var vmaxX;      // == imgA.style.left + scroll_width
var selectedObj;

arrSongList = new Array(1)


function setCookie( name, value, expiredays ){
	var today = new Date();
	today.setDate( today.getDate() + expiredays );
	document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + today.toGMTString() + ";";
}

function save_volume(){
	setCookie( "cfplayer_volume", document.cfplayer.Volume, 365 );
}

function load_volume(){
	
	var vol = ""; //getCookie( "cfplayer_volume" );
	if( vol != "" )
		document.cfplayer.Volume = vol;
}

function funcInit(x2){

	Volumn_ID = window.setInterval ("volumPosition()", 100);
    
    document.onmousedown = engage
	document.onmousemove = dragIt
	document.onmouseup = release
	
	vminX = x2;                  //볼륨컨트롤러 위치값
	vmaxX = x2 + 20;	
}


function funcPlay(){
	if( document.cfplayer.PlayState != 2 ){
		document.cfplayer.Play();
	}
}

function funcPause(){
	
	if( document.cfplayer.PlayState == 2 ){
		document.cfplayer.Pause();
	}
}

function funcStop(){
	document.cfplayer.Stop();
}


var muteFlag = false;

function funcMute(){
	document.cfplayer.Mute= !document.cfplayer.Mute;
	muteFlag = !muteFlag;

	if( muteFlag ){
		$("#btnMuteObj").attr("src", "../images/sub02/btn_mute.gif");
	}else{
		$("#btnMuteObj").attr("src", "../images/sub02/btn_soundon.gif")
	}
}



function volumPosition () {

    if (document.cfplayer.PlayState != 2) return;

 	pVol.style.pixelLeft = ToVolumeLevel(document.cfplayer.Volume);

}




////////////////// 6.30.2000 Nr for speaker volume

function TocfplayerVolume(vol)

{	var level;

	level = (vol - vminX) / (vmaxX - vminX);

	if ( level == 0 )

		return -10000;

	level = Math.log(level)/Math.log(10) * 2000;

	if ( level > 0 )

		level = 0;

	if ( level < -10000 )

		level = -10000;

	level = parseInt(level);

	return level;

}



function ToVolumeLevel(vol)

{

	var level;

	if ( vol <= -10000 ) return vminX;



	level = Math.pow(10,vol/2000);

	level = level * ( vmaxX - vminX ) + vminX;

	return level;

}

////////////////// 6.30.2000 Nr for speaker volume


function getVolObject(i)

{


    if (isNav){

	  return document.layers["pVol"];

	} else {

	  return document.all.pVol.style;

	}

 
}



function shiftTo(obj, x, setVolume) 

{


  	minX = vminX;

	maxX = vmaxX;

	



  if ( x < minX) x = minX;

  if ( x > maxX) x = maxX;



  if (isNav) {

   	obj.moveTo(x,obj.top)

  } else {

   	obj.pixelLeft = x

  }



  if (setVolume){

	  var x1

	  if (obj == getVolObject(0)) {

		x1 = TocfplayerVolume(x)

		document.cfplayer.Volume = x1;

	  }

	  else {

	    x1 = TocfplayerPosition(x)

	    document.cfplayer.CurrentPosition = x1;

	  }

	}	  

}



function hitTest(x, y)

{

  if ( x >= vminX && x <= vmaxX + width){

    if ( y >= pVol_top && y <= pVol_top + height){ 

	  return getVolObject(0);

    }

  }



 
  return null;

}



function setZIndex(obj, zOrder) 

{

  obj.zIndex = zOrder

}



function setSelectedElem(evt) 

{

  if (isNav) {

    var clickX = evt.pageX

    var clickY = evt.pageY

    var testObj
	
    for (var i = document.layers.length - 1; i >= 0; i--) {

      testObj = document.layers[i]
	 
      if ((clickX > testObj.left) && 

        (clickX < testObj.left + testObj.clip.width) && 

        (clickY > testObj.top) && 

        (clickY < testObj.top + testObj.clip.height)) {

        selectedObj = testObj

        if (selectedObj) {

          setZIndex(selectedObj, 100)

          return

        }

      }

    }

    selectedObj = hitTest(evt.pageX , evt.pageY);

    if (selectedObj){ 

        offsetX = 5;

        setZIndex(selectedObj,100)

        shiftTo(selectedObj, evt.pageX - 5, true);

        return;

    }



  } else {
	
    var imgObj = window.event.srcElement
	//alert(imgObj.parentElement.id);
	check = imgObj.parentElement.id;
	if(imgObj.parentElement.id =="pVol"){
    
    selectedObj = imgObj.parentElement.style
	
	
    if (selectedObj && imgObj.parentElement.id != "") {

      offsetX = window.event.offsetX

      setZIndex(selectedObj,100)

      return

    }

    selectedObj = hitTest(window.event.clientX , window.event.clientY);

    if (selectedObj){ 

        offsetX = width/2;

        setZIndex(selectedObj,100)

        shiftTo(selectedObj, window.event.clientX - width/2, true);

        return;

    }
	}
  }
  selectedObj = null

  return

}



function dragIt(evt) {
		
  if (selectedObj && check=="pVol") {
    if (isNav) {
      shiftTo(selectedObj, (evt.pageX - offsetX),true);
    } else {
      
      shiftTo(selectedObj, (window.event.clientX - offsetX),true); 
      
      return false
    }
  }
}



function engage(evt) {
  setSelectedElem(evt)
  if (selectedObj) {
    if (isNav) {
      offsetX = evt.pageX - selectedObj.left;
    }
  }
  return false
}

function release(evt){
  if (selectedObj) {
    setZIndex(selectedObj, 0)
    selectedObj = null
  }
}