function setTab(m,n){
var menu=document.getElementById("tab"+m).getElementsByTagName("li");
var div=document.getElementById("tablist"+m).getElementsByTagName("div");
var showdiv=[];for (i=0; j=div[i]; i++){if ((" "+div[i].className+" ").indexOf(" tablist ")!=-1){showdiv.push(div[i]);}}for(i=0;i<menu.length;i++){menu[i].className=i==n?"now":"";showdiv[i].style.display=i==n?"block":"none";}}