// *********************************** //
//   初 期 設 定
// *********************************** //
var tObj;
var xObj;
var timerID = "";
var n = "dv1";
var	m = "td1";
function mn(){
	if(timerID!=""){
		clearTimeout(timerID);
	}
		document.getElementById(n).style.visibility = "hidden";
		document.getElementById(n).style.zIndex = "0";
	tObj = "";
	xObj = "";
	tObj = document.getElementById(n);
	xObj = document.getElementById(m);

	tObj.style.visibility="visible";

// 元メニュー位置検出
	xpos  = getXpos(xObj);
	ypos  = getYpos(xObj);
	ypos += xObj.offsetHeight+1;


	tObj.style.left = xpos + "px";
	tObj.style.top = ypos + "px";
	tObj.style.zIndex = "1";
}

function dlt(){
	if(timerID!=""){clearTimeout(timerID);}
	timerID = setTimeout("dlt2()",50);
}

function dlt2(){
	var dval;
	var tval;

		dval = "dv1";
		tval = "td1";
		document.getElementById(dval).style.visibility = "hidden";
		document.getElementById(dval).style.zIndex = "0";
}

function getXpos(obj){
	xpos = obj.offsetLeft;
	if(obj.offsetParent != null){
		xpos += getXpos(obj.offsetParent);
	}
	return xpos;
}

function getYpos(obj){
	ypos = obj.offsetTop;
	if(obj.offsetParent != null){
		ypos += getYpos(obj.offsetParent);
	}
	return ypos;
}

function exMenu(tName){
	var obj = document.getElementById(tName).style;
	if(obj.display == "block"){
		obj.display = "none";
	}
	else {
//		init();
		obj.display = "block";
	}

}
function init(){
	for(i=1;i<3;i++){
		tree_name = "tree" + i;
		document.getElementById(tree_name).style.display = "none";
	}
}