(function() {
	var menus;

	if (document.getElementsByClassName)
	{
		menus = document.getElementsByClassName('menu_cell');
	}
	else
	{
		var cells = document.getElementsByTagName("td");
		var i = 0;
		var element;
		menus = new Array();
		while (element = cells[i++])
		{
			if (element.className.indexOf("menu_cell") != -1)
			{
				menus[menus.length] = element;
			}
		}
	}


	for (var i = 0; i < menus.length; i++)
	{
		menus[i].onmouseover = function()
		{
			this.className = this.className.replace(/gray/, "green");
		};
		
		menus[i].onmouseout = function()
		{
			this.className = this.className.replace(/green/, "gray");
		};
	} 
})();