//验证搜索
function checksearch(search) {
if (search.keyword.value==""){
alert("请输入关键字后再搜索。");
return false;
}
}
//加入收藏
function addfavorite()
{
   if (document.all)
   {
      window.external.addFavorite('http://tv.high5.cn','High5在线视频');
   }
   else if (window.sidebar)
   {
      window.sidebar.addPanel('High5在线视频', 'http://tv.high5.cn', "");
   }
}
//选项卡
function settab(cur, tabs_label) {
	ocur = document.getElementById(cur);
	ocur_btn = document.getElementById(cur+'_btn');

	eval('var tabs='+tabs_label);

	var l = tabs.length;

	for(i = 0;  i < l; i++) {
		document.getElementById(tabs[i]+'_btn').className="sep";
		document.getElementById(tabs[i]).style.display = 'none';
	}

	ocur.style.display = '';
	ocur_btn.className = 'purple';
	ocur_btn.blur();
}