/*========================= TOP OF THE MENU CASCADE =========================*/

.menu {
	position:relative;        /* establish a menu-relative positioning context */
	float:left;                                     /* play nicely with others */
	margin:0;
	padding:0;
	border:0;
	height:30px;                                  /* the menu's overall height */
	width:100%;         /* we always want our menu to fill the available space */
	font:normal 11px Verdana, Arial, Helvetica, sans-serif;
	z-index:2000;
}

.menu img {
	vertical-align: top;      /* prevent images from being pushed down by text */
}

.menu ul {
	padding:0;
	margin:0;
	border:0;
	list-style-type:none;          /* we don't want to view the list as a list */
	line-height:1.5em;           /* globally set the menu's item spacing. note */
}                               /* this must be 1.0 or 1.5 or 2.0 for Mozilla */

.menu li {
	float:left;    /* this creates the side-by-side array of top-level buttons */
	position:relative;    /* create local positioning contexts for each button */
	margin:0;
	padding:0;
	background:url(../website-images/seprator-topnav.gif) no-repeat right center;
	font:normal 12px/30px Verdana, Arial, Helvetica, sans-serif;
}

.menu ul li table {
	margin:-1px 0;              /* IE5 needs -1px top and bottom table margins */
	m\argin:0;               /* re-zero the table margins for everyone but IE5 */
	border-collapse:collapse;      /* IE5 needs this for the sub-menus to work */
	font-size:12px;        /* this sets the base font size for our entire menu */
}


/*======================== TOP LEVEL MENU DEFINITIONS ========================*/

.menu ul li ul {
	display:none;                  /* initially hide the entire list hierarchy */
	padding:1px;                               /* this is our box border width */
}

.menu ul li a,
.menu ul li a:visited {                    /* unselected top-level menu items */
	display:block;
	float:left;
	text-decoration:none;
	height:30px;
	color:#FFFFFF;
	padding:0 15px;
}

.menu ul li:hover a,
.menu ul li a:hover {                        /* selected top-level menu items */
	border-top:0;    /* these 2 lines create the push-in illusion */
	height:30px;
	background:#000;
}

/*======================== 2ND LEVEL MENU DEFINITIONS ========================*/

.menu ul li:hover ul,
.menu ul li a:hover ul {                           /* 2nd level drop-down box */
	display:block;
	position:absolute;
	margin:0;
	top:30px;              /* place us just up underneath the top-level images */
	left:-1px;       /* left-align our drop-down to the previous button border */
	height:auto;      /* the drop-down height will be determiend by line count */
	width:13.5em;
	color:white;                        /* this sets the unselected-text color */
	background:black;         /* this sets our menu's effective "border" color */
}

.menu ul li:hover ul.leftbutton,
.menu ul li a:hover ul.leftbutton {/* our first dropdown should not be skewed */
	left:0px;
	top:30px;
}

.menu ul li:hover ul li a,
.menu ul li a:hover ul li a {                   /* 2nd level unselected items */
	border:0;
	margin:0;
	padding:5px 5px;
	height:auto;
	color:#fff;               /* this sets the unselected drop-down text color */
	background-color:#264C81;       /* this sets the drop-down menu background color */
	width:12.7em;
	font:normal 12px/16px Verdana, Arial, Helvetica, sans-serif;
}

.menu ul li:hover ul li:hover a,
.menu ul li a:hover ul li a:hover {                /* 2nd level selected item */
	color:fff;
	background-color:#000;
	background-image:none;
}


/*======================== 3RD LEVEL MENU DEFINITIONS ========================*/

.menu ul li:hover ul li ul,
.menu ul li a:hover ul li a ul {             /* hide inactive 3rd-level menus */
	visibility:hidden;
}
     
.menu ul li:hover ul li:hover ul,
.menu ul li a:hover ul li a:hover ul {             /* 3rd level drop-down box */
	visibility:visible;
	position:absolute;
	margin-top:-1px;	      /* bring the top edge of the 3rd level menu up one */
	top:0;
	left:13.5em;
	width:14em;
}

.menu ul li:hover ul li:hover ul li a,
.menu ul li a:hover ul li a:hover ul li a {     /* 3rd level unselected items */
	width:14em;
	background:#264C81;
}

.menu ul li:hover ul li:hover ul li a:hover,
.menu ul li a:hover ul li a:hover ul li a:hover {    /* level3 selected items */
	width:14em;
	background:black;
}

#research {            /* this rightmost "Research" button must be positioned */
	float:right;
}

#research a {
	background:none;
	font:normal 11px/30px Verdana, Arial, Helvetica, sans-serif;
	color:#ffffff;
	text-decoration:underline;
}
#research a:hover {
	background:none;
	color:#fff;
	text-decoration:none;
}