ul#menubase {
	list-style-type: none;
	width: 100%; /* précision pour Opera */
	margin: 0;
	padding: 0;
}
ul#menubase li {
	float: right;
	margin: 0;
	padding: 0;
}
.menubas0 {
	display: block;
	width: 14px;
	height: 32px;
	background:url(../images/biotrial-menubas0.png);
}
.menubas0 a {
	width: 14px;
	height: 32px;
	background:url(../images/biotrial-menubas0.png);
}
.menubas0 a:hover {
	width: 14px;
	height: 32px;
	background:url(../images/biotrial-menubas0b.png);
}

/* Bouton News */
.menubas1 {
	display: block;
	width: 120px;
	height: 32px;
	background:url(../images/biotrial-menubas1.png);
}
.menubas1 a {
	width: 120px;
	height: 32px;
	background:url(../images/biotrial-menubas1.png);
}
.menubas1 a:hover {
	width: 120px;
	height: 32px;
	background:url(../images/biotrial-menubas1b.gif);
}
.menubas1b {
	display: block;
	width: 120px;
	height: 32px;
	background:url(../images/biotrial-menubas1b.gif);
}

.menubas1b a {
	width: 120px;
	height: 32px;
	background:url(../images/biotrial-menubas1b.gif);
}
.menubas1b a:hover {
	width: 120px;
	height: 32px;
	background:url(../images/biotrial-menubas1b.gif);
}

/* Bouton Publications */
.menubas2 {
	display: block;
	width: 116px; 
	height: 32px;
	background:url(../images/biotrial-menubas2.png);
}
.menubas2 a {
	width: 116px; 
	height: 32px;
	background:url(../images/biotrial-menubas2.png);
}
.menubas2 a:hover {
	width: 116px; 
	height: 32px;
	background:url(../images/biotrial-menubas2b.gif);
}
.menubas2b {
	display: block;
	width: 116px; 
	height: 32px;
	background:url(../images/biotrial-menubas2b.gif);
}
.menubas2b a {
	width: 116px; 
	height: 32px;
	background:url(../images/biotrial-menubas2b.gif);
}
.menubas2b a:hover {
	width: 116px; 
	height: 32px;
	background:url(../images/biotrial-menubas2b.gif);
}


/* Bouton events */
.menubas3 {
	display: block; 
	width: 107px; 
	height: 32px;
	background:url(../images/biotrial-menubas3.png);
}
.menubas3 a {
	width: 107px; 
	height: 32px;
	background:url(../images/biotrial-menubas3.png);
}
.menubas3 a:hover {
	width: 107px; 
	height: 32px;
	background:url(../images/biotrial-menubas3b.gif);
}
.menubas3b {
	display: block; 
	width: 107px; 
	height: 32px;
	background:url(../images/biotrial-menubas3b.gif);
}
.menubas3b a {
	width: 107px; 
	height: 32px;
	background:url(../images/biotrial-menubas3b.gif);
}
.menubas3b a:hover {
	width: 107px; 
	height: 32px;
	background:url(../images/biotrial-menubas3b.gif);
}



/* Bouton Job opportunities */
.menubas4 {
	display: block; 
	width: 123px; 
	height: 32px;
	background:url(../images/biotrial-menubas4.png);
}
.menubas4 a {
	width: 123px; 
	height: 32px;
	background:url(../images/biotrial-menubas4.png);
}
.menubas4 a:hover {
	width: 123px; 
	height: 32px;
	background:url(../images/biotrial-menubas4b.gif);
}
.menubas4b {
	display: block; 
	width: 123px; 
	height: 32px;
	background:url(../images/biotrial-menubas4b.gif);
}
.menubas4b a {
	width: 123px; 
	height: 32px;
	background:url(../images/biotrial-menubas4b.gif);
}
.menubas4b a:hover {
	width: 123px; 
	height: 32px;
	background:url(../images/biotrial-menubas4b.gif);
}


/* Bouton Contact us */
.menubas5 {
	display: block; 
	width: 145px; 
	height: 32px;
	background:url(../images/biotrial-menubas5.png);
}
.menubas5 a { 
	width: 145px; 
	height: 32px;
	background:url(../images/biotrial-menubas5.png);
}
.menubas5 a:hover { 
	width: 145px; 
	height: 32px;
	background:url(../images/biotrial-menubas5b.gif);
}
.menubas5b {
	display: block; 
	width: 145px; 
	height: 32px;
	background:url(../images/biotrial-menubas5b.gif);
}
.menubas5b a { 
	width: 145px; 
	height: 32px;
	background:url(../images/biotrial-menubas5b.gif);
}
.menubas5b a:hover { 
	width: 145px; 
	height: 32px;
	background:url(../images/biotrial-menubas5b.gif);
}