李智登“燕赵讲坛”教市民“智慧养生”

var nn; nn=1; setTimeout('change_img()',6000); function change_img() { if(nn>4) nn=1 setTimeout('setFocus1('+nn+')',6000); nn++; tt=setTimeout('change_img()',6000); } function setFocus1(i) { selectLayer1(i); } function selectLayer1(i) { switch(i) { case 1: document.getElementById("focusPic1").style.display="block"; document.getElementById("focusPic2").style.display="none"; document.getElementById("focusPic3").style.display="none"; document.getElementById("focusPic4").style.display="none"; document.getElementById("focusPic1nav").style.display="block"; document.getElementById("focusPic2nav").style.display="none"; document.getElementById("focusPic3nav").style.display="none"; document.getElementById("focusPic4nav").style.display="none"; break; case 2: document.getElementById("focusPic1").style.display="none"; document.getElementById("focusPic2").style.display="block"; document.getElementById("focusPic3").style.display="none"; document.getElementById("focusPic4").style.display="none"; document.getElementById("focusPic1nav").style.display="none"; document.getElementById("focusPic2nav").style.display="block"; document.getElementById("focusPic3nav").style.display="none"; document.getElementById("focusPic4nav").style.display="none"; break; case 3: document.getElementById("focusPic1").style.display="none"; document.getElementById("focusPic2").style.display="none"; document.getElementById("focusPic3").style.display="block"; document.getElementById("focusPic4").style.display="none"; document.getElementById("focusPic1nav").style.display="none"; document.getElementById("focusPic2nav").style.display="none"; document.getElementById("focusPic3nav").style.display="block"; document.getElementById("focusPic4nav").style.display="none"; break; case 4: document.getElementById("focusPic1").style.display="none"; document.getElementById("focusPic2").style.display="none"; document.getElementById("focusPic3").style.display="none"; document.getElementById("focusPic4").style.display="block"; document.getElementById("focusPic1nav").style.display="none"; document.getElementById("focusPic2nav").style.display="none"; document.getElementById("focusPic3nav").style.display="none"; document.getElementById("focusPic4nav").style.display="block"; break; } } 1 2 3 4