function setTab(ULid,L){
var list=document.getElementById(ULid);
var items=list.getElementsByTagName("li");
var n=items.length;
for(i=1;i<=n;i++){
var menu=document.getElementById(ULid+"L"+i);
var con=document.getElementById(ULid+"C"+i);
menu.className=i==L?"Menubox_on":"";
con.style.display=i==L?"block":"none";
}
}