var scrollheight = 20 ;		//卷軸高
  var lineNum = 1; 
  var boardheight=scrollheight * lineNum;	//跑馬燈高
  var scrollwidth=600;		//跑馬燈寬
  var scrollTimeOut = 10;		//移動時間
  var scrollStopTime = 350	//停留時間 值愈小停留愈短
  
  var doScroll = true			//是否要跑
  var scrollCountTime = 0;	//目前時間
  var offSet = scrollheight;	//偏移量
  var startSetp = 0;
  
  function ScrollBluezz() {
  	var thisSc=document.getElementById('scArea');
  	thisSc.style.width = scrollwidth+"px";
  	thisSc.style.height = boardheight+"px";
  	thisSc.style.overflowX = "hidden";
  	thisSc.style.overflowY = "hidden";
  	thisSc.scrollTop = 0
  	setInterval("scrollUpBluezz()",scrollTimeOut)
  }
  
  function scrollUpBluezz() {
  	var thisSc=document.getElementById('scArea');
  	if (doScroll == false) return	//不跑
  	offSet ++ 
  	if (offSet == scrollheight + 1) {
  	  scrollCountTime ++ 
  	  offSet -- 
  	   if (scrollCountTime == scrollStopTime) {
  		 offSet = 0
  		 scrollCountTime = 0
  	   }
  	 }else {
  	  startSetp = thisSc.scrollTop + (scrollheight * lineNum);
  	  thisSc.scrollTop ++
  	  if (startSetp == thisSc.scrollTop + (scrollheight * lineNum)) {
  		thisSc.scrollTop = scrollheight * (lineNum-1)
  		thisSc.scrollTop ++ 
  	  }
  	 }
  }