.nav {
    border-width: 0;
    left: 50%;
    margin: 0;
    margin-left: -500px;
    padding: 0;
    position: absolute;
    top: 170px;
}

.nav ul {
    border-width: 0;
    margin: 0;
    padding: 0;
}

.nav li {
    border-width: 0;
    list-style-type: none;
    margin: 0;
    padding: 0;
}

.nav a, .nav span {
    background-color: transparent;
    background-position: left center;
    background-repeat: no-repeat;
    color: #777777;
    display: block;
    font-size: 14px;
    font-weight: bold;
    height: 32px;
    line-height: 32px;
    text-decoration: none;
    text-indent: 17px;
}

.nav a:hover, .nav span, .nav .active>a {
    background-color: transparent;
    color: #ee0000;
}

.izimenu1 a {
    background-image: url(../media/interface/menu1-off.png);
    background-position: 1px center;
}
.izimenu1 a:hover, .izimenu1 span, .izimenu1 .active>a {
    background-image: url(../media/interface/menu1-on.png);
    background-position: 1px center;
}
.izimenu2 a { background-image: url(../media/interface/menu2-off.png); }
.izimenu2 a:hover, .izimenu2 span, .izimenu2 .active>a { background-image: url(../media/interface/menu2-on.png); }
.izimenu3 a {
    background-image: url(../media/interface/menu3-off.png);
    background-position: 1px center;
}
.izimenu3 a:hover, .izimenu3 span, .izimenu3 .active>a {
    background-image: url(../media/interface/menu3-on.png);
    background-position: 1px center;
}