ul#menu_button{
    list-style:none;
    width:100%;
	margin:0px;
}

ul#menu_button li{
    list-style:none;
    width:166px;
	float:left;
}
ul#menu_button a{
    display:block;
    width:166px;
    height:90px;
    text-indent:-1000px;
    overflow:hidden;
}

a.home{
    background:url(../images/menu_home.gif);
}
a:hover.home{
    background-position:0px -90px;
}

a.search{
    background:url(../images/menu_search.gif);
}
a:hover.search{
    background-position:0px -90px;
}

a.list{
    background:url(../images/menu_list.gif);
}
a:hover.list{
    background-position:0px -90px;
}

a.step{
    background:url(../images/menu_step.gif);
}
a:hover.step{
    background-position:0px -90px;
}

a.faq{
    background:url(../images/menu_faq.gif);
}
a:hover.faq{
    background-position:0px -90px;
}

a.registration{
    background:url(../images/menu_registration.gif);
}
a:hover.registration{
    background-position:0px -90px;
}