.nav{
margin:0;
padding:0;
list-style:none;
}

.nav li{
margin:0;
padding:0;
float:left;
}

.nav li a{
outline:none;
display:block;
float:left;
}

#p1 a{text-indent:-4000em; position:relative; left:10px; width:58px; height:30px;top:0px;}
#p2 a{text-indent:-4000em; position:relative; left:11px; width:96px; height:30px;top:0px;}
#p4 a{text-indent:-4000em; position:relative; left:12px; width:118px; height:30px;top:0px;}
#p5 a{text-indent:-4000em; position:relative; left:13px; width:74px; height:30px;top:0px;}
#p6 a{text-indent:-4000em; position:relative; left:14px; width:74px; height:30px;top:0px;}
#p7 a{text-indent:-4000em; position:relative; left:269px; width:125px; height:30px;top:0px;}

#p1 a:hover{ background:url(../img/menu_rollover.gif);}
#p2 a:hover{background:url(../img/menu_rollover.gif); background-position:-59px 0px;}
#p4 a:hover{background:url(../img/menu_rollover.gif);background-position:-156px 0px;}
#p5 a:hover{background:url(../img/menu_rollover.gif);background-position:-275px 0px;}
#p6 a:hover{background:url(../img/menu_rollover.gif);background-position:-350px 0px;}
#p7 a:hover{background:url(../img/menu_rollover.gif);background-position:-679px 0px;}