/* NAVIGATION BUTTONS */ 
.top-nav{
	border-bottom:1px solid #1188FF; height:46px; 
	background:url(../images/menu/menu_bg2.gif);
}

.cssnav {
    position: relative;
    float: left;
    margin: 0;
    padding: 0;
    font-family: arial, helvetica, sans-serif;
    background: url(../images/menu/overbtn1.jpg) no-repeat;
    width: 75px;
    height: 60px;
    overflow: hidden; /* for ie to hide extra height*/
} 

.cssnav a {
    display: block;
    color: #ffffff;
    font-size: 11px;
    width: 75px;
    height: 46px;
    display: block;
    float: left;
    text-decoration: none;
    overflow: hidden; /* for ie to hide extra height*/
} 
.cssnav a:hover {
    color: #ffffff;
} 
.cssnav img {
    width: 75px;
    height: 46px;
    border: 0;
} 
* html a:hover {
    visibility: visible
} 
.cssnav a:hover img {
    visibility: hidden
} 
.cssnav span {
    position: absolute;
    left: 0px;
    bottom: 0px;
    text-align: center;
    width: 75px;
    cursor: pointer;
}

.cssnav a:hover span {
	background: #000000;
} 

.projects{
	background: url(../images/top_nav/projects_hover.jpg) no-repeat;
}

.news{
	background: url(../images/top_nav/news_hover.jpg) no-repeat;
}

.awards{
	background: url(../images/top_nav/awards_hover.jpg) no-repeat;
}

.publications{
	background: url(../images/top_nav/publications_hover.jpg) no-repeat;
}

.firm{
	background: url(../images/top_nav/firm_hover.jpg) no-repeat;
}

.contact{
	background: url(../images/top_nav/contact_hover.jpg) no-repeat;
}














/* END OF NAVIGATION */