//------Æ·ÅÆÕß°æȨ---------
var nn = 1;
var spd = 1500;
var counts = 3;
function change_img()
{
switch (nn)
{
case 1:
document.getElementById("hq1").style.display = "block";
document.getElementById("hq2").style.display = document.getElementById("hq3").style.display =  "none";
break;
case 2:
document.getElementById("hq2").style.display = "block";
document.getElementById("hq1").style.display = document.getElementById("hq3").style.display =  "none";
break;
case 3:
document.getElementById("hq3").style.display = "block";
document.getElementById("hq1").style.display = document.getElementById("hq2").style.display =  "none"
break;
}
nn++;
if(nn>counts){nn=1}
}
function setTime(){Mar=setInterval(change_img,spd)}
var Mar=setInterval(change_img,spd);
function stopchange(){clearInterval(Mar)};
change_img();