ul#nav { background:url(graphics/navigation.gif); position:relative; margin:0; }
ul#nav li { float:left; list-style-type:none; }
ul#nav li a { height:36px; display:block; position:absolute; top:0; outline:none; }

ul#nav span {
display:none;
}

li#bthome a, li#btstock a, li#btstock2 a, li#btstocklist a, li#btcontact a {background:url(graphics/navigation.gif) }

li#bthome a 						{ background-position:0 0; width:145px; left:0 }
li#bthome a:hover					{ background-position:0 -36px }

li#btstock a 						{ background-position:-145px 0; width:150px; left:145px }
li#btstock a:hover					{ background-position:-145px -36px }


li#btstock2 a 					{ background-position:-295px 0; width:139px; left:295px }
li#btstock2 a:hover				{ background-position:-295px -36px }


li#btstocklist a 						{ background-position:-434px 0; width:176px; left:434px }
li#btstocklist a:hover					{ background-position:-434px -36px }


li#btcontact a 						{ background-position:-610px 0; width:154px; left:610px }
li#btcontact a:hover					{ background-position:-610px -36px }