var OumiMenu = Class.create();
	OumiMenu.prototype = {
		initialize: function() {
			this.menucnt = 7,
			this.menuid = Array(),
			this.menuimg = '.gif',
			this.menuimg_on = '_o.gif';
			
			var i;
			for (i=1;i<=this.menucnt;i++) {
				this.menuid[i] = 'menu0' + i;
			}
		},
		initset: function(id) {
			var item_name = this.menuid[id];
			var item = $(this.menuid[id]);
			item.src = '/img/' + item_name + '_o.gif';
		},
		aset: function(id) {
			var item_name = this.menuid[id];
			var item = $(this.menuid[id]);
			Event.observe(item, "mouseover", function() {
				item.src = '/img/' + item_name + '_o.gif';
			});
			Event.observe(item, "mouseout", function() {
				item.src = '/img/' + item_name + '.gif';
			});
		}
	
	}

	function init(id) {
		menu_init(id);
		
	}
	
	function menu_init(id) {
		var menu = new OumiMenu();
		
		var i;
		for (i=1;i<=menu.menucnt;i++) {
			if (i == id) {
				menu.initset(i);
			} else {
				menu.aset(i);
			}
		}
		
	}