.meniuprincipal{ 
    width:1120px; 
    height:44px; 
}
.meniuprincipal ul { 
    float:left; 
}
.meniuprincipal ul li { 
    float:left; 
}
.meniuprincipal ul li a{ 
    float:left; 
    width:136px; 
    height:22px; 
    padding:22px 0px 0px 0px; 
    text-align:center; 
    display:block; 
    cursor:pointer; 
    background:url(../img/interface/gfx/mainmenu.jpg) 0px 0px no-repeat; 
    color:#494949; 
    font-size:12px; 
    text-transform:uppercase; 
}
.meniuprincipal ul li a:hover{ 
    background:url(../img/interface/gfx/mainmenu.jpg) 0px -44px no-repeat; 
}
.meniuprincipal ul li a.first{ 
    float:left; 
    background:url(../img/interface/gfx/mainmenuleft.jpg) 0px 0px no-repeat; 
}
.meniuprincipal ul li a.first:hover {  
    background:url(../img/interface/gfx/mainmenuleft.jpg) 0px -44px no-repeat;  
}
.meniuprincipal ul li a.last{ 
    background:url(../img/interface/gfx/mainmenuright.jpg) 0px 0px no-repeat; 
}
.meniuprincipal ul li a.last:hover { 
    background:url(../img/interface/gfx/mainmenuright.jpg) 0px -44px no-repeat;  
}
.meniuprincipal ul li a.activ{ 
    float:left; background-position: 0px -88px; 
}
.meniuprincipal ul li a.activ:hover{ 
    float:left; 
    background-position: 0px -88px; 
}