// JavaScript Document

var menu_info = new Array();

/*----------------------------------------------------
関数名: menu()
概要  : メニュー開閉関数
説明  : メニュー内の子メニューを開閉する.
(孫メニューは開閉しない)
変数  :  host_object_id 子メニューを包括する要素のIDを
指定する.(つまり自らの要素のID)
ただし、thisなどのようにオブジェクトを渡してはならない.
visible_object_id 開閉するオブジェクトのidを指定
----------------------------------------------------*/

function menu(host_object_id, visible_object_id){
	if(document.all){
		var visible_object = document.all[visible_object_id];
		var host_object = document.all[host_object_id];
	}else if(document.getElementById){
		var visible_object = document.getElementById(visible_object_id);
		var host_object = document.getElementById(host_object_id);
	}

	if(visible_object.style.visibility == 'visible'){
		visible_object.style.visibility="hidden";
	}else{
		if(document.all){
			visible_object.style.left = host_object.offsetLeft;
			visible_object.style.top = host_object.offsetTop + host_object.offsetHeight;	
			visible_object.style.visibility="visible";
		}else if(document.getElementById){
			visible_object.style.left = host_object.offsetLeft + "px";
			visible_object.style.top = host_object.offsetTop + host_object.offsetHeight + "px";
			visible_object.style.visibility="visible";
		}		
	}
}


/*----------------------------------------------------
関数名: child_menu()
概要  : メニュー開閉関数
説明  : 子メニュー内の子メニューを開閉する.
(孫メニューは開閉しない)
変数  : host_object_id 子メニューを包括する要素のIDを
指定する.(つまり自らの要素のID)
ただし、thisなどのようにオブジェクトを渡してはならない.
visible_object_id 開閉するオブジェクトのidを指定
----------------------------------------------------*/

function child_menu(host_object_id, visible_object_id){

	if(document.all){
		var visible_object = document.all[visible_object_id];
		var host_object = document.all[host_object_id];
	}else if(document.getElementById){
		var visible_object = document.getElementById(visible_object_id);
		var host_object = document.getElementById(host_object_id);
	}

	if(visible_object.style.visibility == 'visible'){
		visible_object.style.visibility="hidden";
	}else{
		if(document.all){
			visible_object.style.left = host_object.offsetLeft + host_object.offsetWidth;
			visible_object.style.top = host_object.offsetTop;
			visible_object.style.visibility="visible";
		}else if(document.getElementById){
			visible_object.style.left = host_object.offsetLeft+ host_object.offsetWidth + "px";
			visible_object.style.top = host_object.offsetTop + "px";
			visible_object.style.visibility="visible";
		}
	}
}