// JavaScript Document
function tabs_z(o,o2,n){//o UL的ID o2 外DIV
	var m_n = document.getElementById(o).getElementsByTagName("LI");
	var c_n = document.getElementById(o2).getElementsByTagName("UL");
	//var d_n = document.getElementById("titles").getElementsByTagName("span");
	for(i=0;i<m_n.length;i++){
	m_n[i].className=i==n?"tabon":"taboff";
	c_n[i].style.display=i==n?"block":"none";
	//d_n[i].className=i==n?"dis":"undis";
	}
}