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From 2013.igem.org

var waitInterval2; var MDelayTime2=200;/* 设置延时0.2秒 */ function qiehuan(num){ clearTimeout(waitInterval2); waitInterval2=window.setTimeout("qiehuan2("+num+");",MDelayTime2); } function qiehuan2(num){ clearTimeout(waitInterval2); for(var id = 0;id<=6;id++)/*栏目数*/ { if(id==num) { document.getElementById("qh_con"+id).style.display="block"; document.getElementById("mynav"+id).className="nav-master current"; } else { document.getElementById("qh_con"+id).style.display="none"; document.getElementById("mynav"+id).className="nav-master"; } } }// JavaScript Document