function switchTo(target) {
    var butBrowse = document.getElementById('librowse');
    var butSearch = document.getElementById('lisearch');
    var objbrowse = document.getElementById('browse_form'); 
    var objsearch = document.getElementById('search_form');
    var searchresults = document.getElementById('results_container');
    
    if ( target == "browse" ) {
            objbrowse.style.display = 'block';
            objsearch.style.display = 'none';
            if ( butBrowse ) { butBrowse.className = "current"; }
            if ( butSearch ) { butSearch.className = ""; }
            if ( searchresults ) { searchresults.innerHTML = "<p>(Results have been cleared.)</p>"; }
    } else if ( target == "search" ) {
            objsearch.style.display = 'block';
            objbrowse.style.display = 'none'; 
            if ( butSearch ) { butSearch.className = "current"; }
            if ( butBrowse ) { butBrowse.className = ""; }
            if ( searchresults ) { searchresults.innerHTML = "<p>(Results have been cleared.)</p>"; }
    }
}

function btnHoverOn(target) {
    var button = document.getElementById(target);
    button.className = "btnHover";
}

function btnHoverOff(target) {
    var button = document.getElementById(target);
    button.className = "btn";
}

function clearBox(box) {
    box.value = ""
}