function clearSearchterm() {
    if (document.getElementById('search').value == 'search keyword eg. 32DD') {
        document.getElementById('search').value = '';
        document.getElementById('search').style = 'color: #000000';
    }
}
function resetSearchterm() {
    if (document.getElementById('search').value == '') {
        document.getElementById('search').value = 'search keyword eg. 32DD';
        document.getElementById('search').style = 'color: #AAAAAA';
    }
}

function swapImage(id, img) {
    document.getElementById(id).src = img;
}

function swapAlt(id, alt) {
    document.getElementById(id).alt = alt;
    document.getElementById(id).title = alt;
}

function swapImageLargeLink(id, link) {
    document.getElementById(id).href = link;
}

function swapMagnifyerLink(id, link) {
    document.getElementById(id).href = link;
}