function changeItem(s) {
        if (s.name != "search1") document.frmSearch.search1.selectedIndex = -1;
        if (s.name != "search2") document.frmSearch.search2.selectedIndex = -1;
        if (s.name != "search3") document.frmSearch.search3.selectedIndex = -1;
}

function submitResource(f) {
        if ( (document.frmSearch.search1.selectedIndex < 0) &&
             (document.frmSearch.search2.selectedIndex < 0) &&
             (document.frmSearch.search3.selectedIndex < 0) )
        {
                alert("You must select a Curriculum, Topic, or Artist first.");
                return false;
        }
        else
        {
          return true;
        }
}