function tabit(btn){
	var idname = new String(btn.id);
	var s = idname.indexOf("_");
	var e = idname.lastIndexOf("_")+1;
	var tabName = idname.substr(0, s);
	var id = parseInt(idname.substr(e, 2));
	var tabNumber = btn.parentNode.childNodes.length;
	for(i=0;i<tabNumber;i++){
			document.getElementById(tabName+"_div_"+i).style.display = "none";
			document.getElementById(tabName+"_btn_"+i).className = "";
		};
		document.getElementById(tabName+"_div_"+id).style.display = "block";
		btn.className = "curr";
};

function etabit(btn){
	var idname = new String(btn.id);
	var s = idname.indexOf("_");
	var e = idname.lastIndexOf("_")+1;
	var tabName = idname.substr(0, s);
	var id = parseInt(idname.substr(e, 2)); //若只取１则只截取1位数字了
	var tabNumber = btn.parentNode.childNodes.length;
	for(i=0;i<tabNumber;i++){
			document.getElementById(tabName+"_div_"+i).style.display = "none";
			document.getElementById(tabName+"_btn_"+i).className = "";
		};
		document.getElementById(tabName+"_div_"+id).style.display = "block";
		btn.className = "curr";
};


function hideMenu(){
	//var idname = new String(btn.id);
	//var s = idname.indexOf("_");
	//var e = idname.lastIndexOf("_")+1;
	//var tabName = idname.substr(0, s);
	//var id = parseInt(idname.substr(e, 2));
	//var tabNumber = btn.parentNode.childNodes.length;
	for(i=0;i<12;i++){
			document.getElementById("tabnav_div_"+i).style.display = "none";
			document.getElementById("tabnav_btn_"+i).className = "";
		};
};