function addBookmark(addurl, addtitle)
{
	if(addurl=='index')
	{
		addurl='http://www.nokiagamedown.com/';
		addtitle='诺基亚手机游戏下载→诺游网';
	}
    if (document.all)
    {
        window.external.addFavorite(addurl, addtitle);
    }
    else if (window.sidebar)
    {
        window.sidebar.addPanel(addtitle, addurl, '');
    }
}

function showtab(name,cursel,n){
 for(i=1;i<=n;i++){
  var menu=document.getElementById(name+i);
  var con=document.getElementById(name+"_"+i);
  menu.className=i==cursel?"hover":"";
  con.style.display=i==cursel?"block":"none";
 }
}