var ua = navigator.userAgent.toLowerCase();
var isStrict = document.compatMode == "CSS1Compat";// 是否定义DOCUMENT类型
    isOpera = ua.indexOf("opera")>-1; // 是Opera
    isChrome = ua.indexOf("chrome")>-1; //是Chrome
    isSafari = !isChrome&&(/webkit|khtml/).test(ua); //是Safari
    isSafari3 = isSafari&&ua.indexOf("webkit/5") != -1; // Safari3
    isIE = ua.indexOf("msie")>-1; //IE6
    isIE7 = !isOpera&&ua.indexOf("msie 7")>-1; // IE7
    isIE8 = !isOpera&&ua.indexOf("msie 8")>-1; //IE8
    isGecko = !isSafari&&!isChrome&&ua.indexOf("gecko")>-1; // Gecko内核
    isGecko3 = isGecko&&ua.indexOf("rv:1.9")>-1; // Gecko3内核
    isBorderBox = isIE&&!isStrict; // 使用盒模型
    isWindows = (ua.indexOf("windows")!=-1 || ua.indexOf("win32") !=-1);// 是Windows系统
    isMac = (ua.indexOf("macintosh")!= -1 || ua.indexOf("mac os x")!= -1); // 是MacOS系统
    isAir = (ua.indexOf("adobeair")!= -1); // 是用Adobe Air浏览
    isLinux = (ua.indexOf("linux")!= -1); // 是Linux系统
    isSecure = window.location.href.toLowerCase().indexOf("https") === 0;  // 是SSL浏览


if (isIE ){
var Speed = 1; //速度(毫秒)
var Space = 50; //每次移动(px)
var jgtime = 8000;
}
else{
var Speed = 1; //速度(毫秒)
var Space = 20; //每次移动(px)
var jgtime = 8000;
	}

var PageWidth = 980; //翻页宽度
var fill = 0; //整体移位
var MoveLock = false;
var MoveTimeObj;
var Comp = 0;
var AutoPlayObj = null;
GetObj("List2").innerHTML = GetObj("List1").innerHTML;
GetObj('ISL_Cont').scrollLeft = 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();',jgtime); //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 % PageWidth - fill != 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('List1').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 ){
  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('List1').scrollWidth){
	 GetObj('ISL_Cont').scrollLeft = GetObj('ISL_Cont').scrollLeft - GetObj('List1').scrollWidth;
	 }
 GetObj('ISL_Cont').scrollLeft += Space;
}
function CompScr(){
 var num;
 if(Comp == 0){MoveLock = false;return;}
 if(Comp < 0){ //上翻
  if(Comp < -Space){
   Comp += Space;
   num = Space;
  }else{
   num = -Comp;
   Comp = 0;
  }
  GetObj('ISL_Cont').scrollLeft -= num;
  setTimeout('CompScr()',Speed);
 }else{ //下翻
  if(Comp > Space){
   Comp -= Space;
   num = Space;
  }else{
   num = Comp;
   Comp = 0;
  }
  GetObj('ISL_Cont').scrollLeft += num;
  setTimeout('CompScr()',Speed);
 }
}