var timerTransLeft = null;
var timerTransRight =null;
var fastSpeed=5;
var normalSpeed=1;
var ttSpeed = normalSpeed;
function makeTrackTurnLeft()
{
	clearTimeout(timerTransRight);
	var objTrack = document.getElementById("WebPageScroll");
	var offsetWidth = objTrack.offsetWidth - 1000;
	if(objTrack.offsetLeft> - offsetWidth-50)
	{
		objTrack.style.left = objTrack.offsetLeft - ttSpeed + "px" ;
	}
	else
	{
		clearTimeout(timerTransLeft);
		return;
	}
	clearTimeout(timerTransLeft);
	timerTransLeft = setTimeout("makeTrackTurnLeft()", 10);
}

function makeTrackTurnRight()
{
	clearTimeout(timerTransLeft);
	
	var objTrack = document.getElementById("WebPageScroll");
	
	if(objTrack.offsetLeft < 80)
	{
		objTrack.style.left = objTrack.offsetLeft + ttSpeed + "px" ;
	}
	else
	{
		clearTimeout(timerTransRight);
		return;
	}
	clearTimeout(timerTransRight);
	timerTransRight = setTimeout("makeTrackTurnRight()", 10);
}

function WebPageStage_OnStopMove()
{
	clearTimeout(timerTransRight);
	clearTimeout(timerTransLeft);
}

function WebPageStage_OnLeft()
{
	var theEvent = window.event || arguments.callee.caller.arguments[0];
	var srcElement = theEvent.srcElement;
	var srcTrack = document.getElementById("WebPageScroll");
	if (!srcElement)
	{
	   srcElement = theEvent.target;
	}

	var offsetWidth = document.body.offsetWidth >=1000 ? document.body.offsetWidth : 1000;

	makeTrackTurnLeft();

}

function WebPageStage_OnRight()
{
	var theEvent = window.event || arguments.callee.caller.arguments[0];
	var srcElement = theEvent.srcElement;
	var srcTrack = document.getElementById("WebPageScroll");
	if (!srcElement)
	{
	   srcElement = theEvent.target;
	}
	
	var offsetWidth = document.body.offsetWidth >=1000 ? document.body.offsetWidth : 1000;

	makeTrackTurnRight();


}

function WebPage_OnMouseOver()
{
	var theEvent = window.event || arguments.callee.caller.arguments[0];
	var srcElement = theEvent.srcElement;
	var srcTrack = document.getElementById("WebPageScroll");
	if (!srcElement)
	{
	   srcElement = theEvent.target;
	}
	
	var tipObj = document.getElementById("WebPageTip");
	
	if(srcElement.tagName.toLowerCase()=="img")
	{
		tipObj.innerHTML = srcElement.getAttribute("alt");
	}
	else
	{
		tipObj.innerHTML = "网站案例滚动展示";
	}
}

function WebPage_OnMouseOut()
{
	
}

function WebPageStage_ButtonDown()
{
	ttSpeed=fastSpeed;
}

function WebPageStage_ButtonUp()
{
	ttSpeed=normalSpeed;
}