/*==============================================================================

	GRC multi-level script-free pure-CSS menuing system stylesheet.
   This code is hereby placed into the public domain by its author
   Steve Gibson. It may be freely used for any purpose whatsoever.

	Computed Geometries:	with a default 12px font, 1.0em == 12px and
	1px == 0.08333em.
	Thus, our 98px wide Freeware & Research buttons are 8.166666em wide.

                      PUBLIC DOMAIN CONTRIBUTION NOTICE							 
   This work has been explicitly placed into the Public Domain for the
	benefit of anyone who may find it useful for any purpose whatsoever.
	
==============================================================================*/

 /*================= STYLES FOR THE GRC MASTHEAD & CONTROLS ==================*/

.menuminwidth0 {             /* for all browsers (non-IE) that obey min-width */
	position:relative;
	border:0;
	margin:0;
	padding:0;
	width:100%;
	height:55px;/* 36px masthead height + 18px button height + 1px lower border*/
	min-width:560px;
}

/* suppress our whole menu when not an interactive mode (when printing, etc.) */
@media print, projection { .menuminwidth0 { d\isplay:none; } }

* html .menuminwidth1 { /* this allows IE5/6 to simulate min-width capability */
	position:relative;  /* we can simulate a minimum width by creating a large */
	float:left;          /* border in this first div, then placing our content */
	height: 1px;          /* into a second nested div (see 2nd nested div next */
	border-left:560px solid #fff;    /* CSS box-model borders are a fixed size */
}

* html .menuminwidth2 {    /* used to simulate min-width capability for IE5/6 */
	position:relative;
	margin-left:-560px;
	height: 1px;
}


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

.menu {
	border-left-width: 0;
	border-bottom-width: 0px;
	border-right-width: 0;
	border-top-width: 0;
	position:relative;        /* establish a menu-relative positioning context */
	float:left;                                     /* play nicely with others */
	margin:0px 0px 0px 0px;
	padding:0;
	height: 30px;                                  /* the menu's overall height */
	width:100%;         /* we always want our menu to fill the available space */
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size:13px;         /* this (and also below) sets the menu's font size */
	/*border-bottom: solid;        /* give us a black border underneath */
}

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

.menu ul {
	margin: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;
}

.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 */
}

.drop {
	display:block;
	padding:0px 3em;	       /* this sets the l/r margins for our menu item */
	margin:0;
	text-align:right;   /* this right alignment goes with the float:left below */
	cursor:pointer;      /* IE tries to switch back to an I-beam, don't let it */
	cursor:hand;           /* IE5 only knows about "hand", so set it both ways */
}

.drop span {        /* this simultaneously left and right aligns the text and */
	float:left;       /* the >> in the drop-down menus which link to sub-menus */
}

.rightmenu {
	position:relative;  /* establish a local positioning context for YAH label */
	float:right;                  /* and right-align it at the top of our page */
}


/*======================== 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:20px;
}

.menu ul li:hover a,
.menu ul li a:hover {                        /* selected top-level menu items */                                                           
	/*border-top: solid;    /* these 2 lines create the push-in illusion */
	height:20px;
}


#nav li a {
	float: left;
	width: 105px;
	height: 0pt;
	padding-top: 20px;
	overflow-x: hidden;
	overflow-y: hidden;
	}

.homebutton {
	height:20px;
	width:105px;
	background: url(images/home.png) no-repeat 0 0;
}
.homebutton:hover {
	background-position: 0 -20px;
	}
.blogbutton {
	height:20px;
	width:105px;
	background: url(images/blog.png) no-repeat 0 0;
}
.blogbutton:hover {
	background-position: 0 -20px;
	}
.lecturesbutton {
	height:20px;
	width:105px;
	background: url(images/lectures.png) no-repeat 0 0;
}
.lecturesbutton:hover {
	background-position: 0 -20px;
	}
.historybutton {
	height:20px;
	width:105px;
	background: url(images/history.png) no-repeat 0 0;
}
.historybutton:hover {
	background-position: 0 -20px;
	}
.papersbutton {
	height:20px;
	width:105px;
	background: url(images/papers.png) no-repeat 0 0;
}
.papersbutton:hover {
	background-position: 0 -20px;
	}
.linksbutton {
	height:20px;
	width:105px;
	background: url(images/links.png) no-repeat 0 0;
}
.linksbutton:hover {
	background-position: 0 -20px;
	}
.modelingbutton {
	height:20px;
	width:105px;
	background: url(images/modeling.png) no-repeat 0 0;
}
.modelingbutton:hover {
	background-position: 0 -20px;
	}
.contactbutton {
	height:20px;
	width:105px;
	background: url(images/contact.png) no-repeat 0 0;
}
.contactbutton:hover {
	background-position: 0 -20px;
	}
.commentarybutton {
	height:20px;
	width:105px;
	background: url(images/commentary.png) no-repeat 0 0;
}
.commentarybutton:hover {
	background-position: 0 -20px;
	}
.updatesbutton {
	height:20px;
	width:105px;
	background: url(images/updates.png) no-repeat 0 0;
}
.updatesbutton:hover {
	background-position: 0 -20px;
	}
.menu span {
  	display: none;
  	}
#herenow {
  	background-position: 0 -20px;
	}