var imgWidth=257;               //图片宽
    var imgHeight=178;              //图片高
    var textFromHeight=0;           //焦点字框高度 (单位为px)
    var textStyle="f12";            //焦点字class style (不是连接class)
    var textLinkStyle="p1"; 	    //焦点字连接class style
    var buttonLineOn="#f60";        //button下划线on的颜色
    var buttonLineOff="#000";       //button下划线off的颜色
    var TimeOut=5000;               //每张图切换时间 (单位毫秒);
    var imgUrl=new Array(); 
    var imgLink=new Array();
    var imgtext=new Array();
    var imgAlt=new Array();
    var adNum=0;
        
    
    function changeimg(n)
    {
        adNum=n;
        window.clearInterval(theTimer);
        adNum=adNum-1;
        nextAd();
    }

    function goUrl()
    {
        window.open(imgLink[adNum],'_blank');
    }
    
    var count=0;
    
    function GetCount()
    {
        for (i=1;i<imgUrl.length;i++)
        {
            if( (imgUrl[i]!="") && (imgLink[i]!="")&&(imgtext[i]!="")&&(imgAlt[i]!="") ) 
            {
                count++;
            } 
            else 
            {
                break;
            }
        }
    }

    function playTran()
    {
        if (document.all)
        {
	        document.getElementById ("imgInit").filters.revealTrans.play();		
        }
    }
    var key=0;
    function nextAd()
    {
        if(adNum<count)
        {
            adNum++ ;
        }
        else
        {
            adNum=1;
        }

        if( key==0 )
        {
            key=1;
        }
        else if (document.all)
        {
 	        document.getElementById ("imgInit").filters.revealTrans.Transition=6;
	        document.getElementById ("imgInit").filters.revealTrans.apply();
            playTran();
        }
        document.getElementById ("imgInit").src=imgUrl[adNum];
        document.getElementById('link_img'+adNum).src = "images/HomePicTurnOn0"+adNum+".gif";
        for (var i=1;i<=count;i++)
        {
           if (i!=adNum){document.getElementById('link_img'+i).src = "images/HomePicTurnOff0"+i+".gif";}
        }	
        theTimer=setTimeout("nextAd()", TimeOut);
    }