var _n = 0;
<!-- 
function g(o) {
	return document.getElementById(o);
}
function HoverLi(n) { 
//�����N���ǩ,�ͽ�i<=N; 
	for (var i = 2; i <= 7; i++) {
		g("tb_" + i).className = "normaltab";
		g("tbc_0" + i).className = "undis";
	}
	g("tbc_0" + n).className = "dis";
	g("tb_" + n).className = "hovertab";
	_n = n;
} 
//-->