var rollTime=1;
document.getElementById("rollImg").src = document.getElementById("rollImg1").src;
//document.getElementById("rollIntro").innerHTML=document.getElementById("intro").innerHTML;
for(var i=1;i<6;i++)
{
document.getElementById("link"+i+"Roll").href=document.getElementById("txtLink"+i).href;
document.getElementById("rollDiv"+i).innerHTML=document.getElementById("txtLink"+i).innerHTML;
}
function ChangeRoll(flag)
{
//确定图片地址和文字
for(var i=1;i<6;i++)
{
document.getElementById("rollDiv"+i).className = "focuschOff";
}
document.getElementById("rollDiv5").className = "focuschOff";
if(flag>1)
{
document.getElementById("rollDiv"+(flag-1)).className = "focuschOff";
}
document.getElementById("rollDiv"+flag).className = "focuschOn";
document.getElementById("rollImg").src = document.getElementById("rollImg"+flag).src;

//document.getElementById("rollIntro").innerHTML = document.getElementById("intro"+flag).innerHTML;
document.getElementById("rollLink").href=document.getElementById("link"+flag+"Roll").href;
}
function AutoChangeRoll()
{
if(rollTime==5)	  rollTime=1;
else	 	  rollTime=rollTime+1;
ChangeRoll(rollTime);
}
window.setInterval("AutoChangeRoll()", 5000);//自动播放时间