#menu_level_1, #menu_level_1 ul { /* all lists */
	padding: 0;
	margin: 0;
	list-style: none;
}

#menu_level_1 { /* first-level list */
	height: 25px;
}

#menu_level_1 li { /* first-level items */
	float: left;
	width: 100px;
}

#menu_level_1 li a { /* first-level links */
	height: 20px;
	display : block;
	padding: 5px 0 0 5px;
	background-color: silver;
}

#menu_level_1 li a.menu_link_active {
	background-color: gray;
}

#menu_level_2 { /* second-level list */
	background-color: gray;
	height: 25px;
}

#menu_level_2 li { /* second-and-above-level items */
	position: relative;
	float: left;
	width: 100px;
}

#menu_level_2 li li { /* third-and-above-level items */
	width: auto;
}

#menu_level_2 li a { /* second-and-above-level links */
	height: 25px;
	display : block;
	padding: 5px 0 0 5px;
}

#menu_level_2 li li a { /* third-and-above-level links */
	height: 20px;
	display : block;
	padding: 5px 0 0 5px;
}

#menu_level_2 li ul li { /* third-and-above-level items */
	float: none;
}

#menu_level_2 li ul { /* third-and-above-level lists */
	position : absolute;
	left: -999em;
	width : 100px;
	background-color: silver;
}

#menu_level_2 li ul ul { /* fourth-and-above-level lists */
	left: -999em;
	width : 100px;
}

#menu_level_2 li:hover ul ul, #menu_level_2 li:hover ul ul ul, #menu_level_2 li.sfhover ul ul, #menu_level_2 li.sfhover ul ul ul {
	left: -999em;
}

#menu_level_2 li:hover ul, #menu_level_2 li li:hover ul, #menu_level_2 li li li:hover ul, #menu_level_2 li.sfhover ul, #menu_level_2 li li.sfhover ul, #menu_level_2 li li li.sfhover ul { /* lists nested under hovered list items */
	left: auto;
}