var dragObj,volumeMaskDiv;	
var trackMain_min = 0;
var trackMain_max = 100;	
var trackLength = 45;
var trackMain_pos = 42;//记录滑动块当前的位置
var trackMain_is_drag = false;
var trackMain_x;
var trackMain_x_min = 1 ,trackMain_x_max = 42;

var playHoverImg = new Image();
playHoverImg.src="images/play_hover.gif";
var stopHoverImg = new Image();
stopHoverImg.src="images/stop_hover.gif";
var muteHoverImg = new Image();
muteHoverImg.src="images/mute_hover.gif";
var fullScreenHoverImg = new Image();
fullScreenHoverImg.src="images/fullScreen_hover.gif";


function trackMain_down(){
	if(!IsBanaComInited)//当前播放器未初始化
		return;
	dragObj = document.getElementById("dragImgObj");
	volumeMaskDiv = document.getElementById("volumeMaskDiv");
	dragObj.setCapture();
	dragObj.src="images/OnVolumeCtrlDragger.gif";
	trackMain_x = event.clientX;
	trackMain_is_drag = true;
}
function trackMain_move(){
	if(trackMain_is_drag){
		var stepLength = event.clientX - trackMain_x;			
		trackMain_pos += stepLength;
		trackMain_x = event.clientX;
		if(trackMain_pos >= trackMain_x_max)
			trackMain_pos = trackMain_x_max;
		else if(trackMain_pos <= trackMain_x_min)
			trackMain_pos = trackMain_x_min;
		dragObj.style.pixelLeft = trackMain_pos;
		volumeMaskDiv.style.width=(49-(43-trackMain_pos)) + "px";
		BanaComVolumeValue=parseInt(100/41*(trackMain_pos-1));
		PlayerSetVolume();
	}
	
}
function trackMain_up(){
	if(trackMain_is_drag){		
		dragObj.alt = BanaComVolumeValue;			
		trackMain_is_drag = false;			
		dragObj.src="images/volumeCtrlDragger.gif"
		dragObj.releaseCapture();
	}		
}
function setTrackPos(){		
	var varPos = parseInt(BanaComVolumeValue/100*41)+1;
	if(varPos>=42)
		varPos = 42;
	document.getElementById("dragImgObj").style.pixelLeft = varPos;
	document.getElementById("volumeMaskDiv").style.width=(49-(43-varPos)) + "px";
}