var Speed = 3; //速度(毫秒)
var Space = 10; //每次移动(px)
var PageWidth = 928; //翻页宽度
var fill = 0; //整体移位
var MoveLock = false;
var MoveTimeObj;
var Comp = 0;
var AutoPlayObj = null;

GetObj("List4").innerHTML = GetObj("List3").innerHTML;
GetObj('ISL_Cont').scrollLeft = fill>=0?fill:GetObj('List3').scrollWidth - Math.abs(fill);
GetObj("ISL_Cont").onmouseover = function(){clearInterval(AutoPlayObj);}
GetObj("ISL_Cont").onmouseout = function(){AutoPlay();}
AutoPlay();
function GetObj(objName){if(document.getElementById){return eval('document.getElementById("'+objName+'")')}else{return eval('document.all.'+objName)}}
function AutoPlay(){ //自动滚动
	//clearInterval(AutoPlayObj);
	//AutoPlayObj = setInterval('ISL_GoDown();ISL_StopDown();',5000); //间隔时间
}
function ISL_GoUp(){ //上翻开始
	if(MoveLock) return;
	clearInterval(AutoPlayObj);
	MoveLock = true;
	MoveTimeObj = setInterval('ISL_ScrUp();',Speed);
}
function ISL_StopUp(){ //上翻停止
	clearInterval(MoveTimeObj);
	if((GetObj('ISL_Cont').scrollLeft - fill) % PageWidth != 0){
		Comp = fill - (GetObj('ISL_Cont').scrollLeft % PageWidth);
		CompScr();
	}else{
		MoveLock = false;
	}
	AutoPlay();
}
function ISL_ScrUp(){ //上翻动作
	if(GetObj('ISL_Cont').scrollLeft <= 0){GetObj('ISL_Cont').scrollLeft = GetObj('ISL_Cont').scrollLeft + GetObj('List3').offsetWidth}
	GetObj('ISL_Cont').scrollLeft -= Space ;
}


function ISL_GoDown(){ //下翻
	clearInterval(MoveTimeObj);
	if(MoveLock) return;
	clearInterval(AutoPlayObj);
	MoveLock = true;
	ISL_ScrDown();
	MoveTimeObj = setInterval('ISL_ScrDown()',Speed);
}
function ISL_StopDown(){ //下翻停止
	clearInterval(MoveTimeObj);
	if(GetObj('ISL_Cont').scrollLeft % PageWidth - (fill>=0?fill:fill+1) != 0 ){
		Comp = PageWidth - GetObj('ISL_Cont').scrollLeft % PageWidth + fill;
		CompScr();
	}else{
		MoveLock = false;
	}
	AutoPlay();
}
function ISL_ScrDown(){ //下翻动作
	if(GetObj('ISL_Cont').scrollLeft >= GetObj('List3').scrollWidth){GetObj('ISL_Cont').scrollLeft = GetObj('ISL_Cont').scrollLeft - GetObj('List3').scrollWidth;}
	GetObj('ISL_Cont').scrollLeft += Space ;
}

function CompScr(){
	if(Comp == 0){MoveLock = false;return;}
	
	var num;
	var TempSpeed = Speed,TempSpace = Space;
	if(Math.abs(Comp)<PageWidth/2){
		TempSpace =  Math.round(Math.abs(Comp/Space));
		if(TempSpace<1){TempSpace=1};
	}
	
	if(Comp < 0){ //上翻
		if(Comp < -TempSpace){
			Comp += TempSpace;
			num = TempSpace;
		}else{
			num = -Comp;
			Comp = 0;
		}
		GetObj('ISL_Cont').scrollLeft -= num;
		setTimeout('CompScr()',TempSpeed);
	}else{ //下翻
		if(Comp > TempSpace){
			Comp -= TempSpace;
			num = TempSpace;
		}else{
			num = Comp;
			Comp = 0;
		}
		GetObj('ISL_Cont').scrollLeft += num;
		setTimeout('CompScr()',TempSpeed);
	}
}