function set_search_placeholder() {
    searchNodes = document.getElementsByName('terms');
    searchField = searchNodes[0];
    if (! searchField.value) {
        searchField.value = "Type search terms here.";
        searchField.style.color = '#8F9695';
    }
}

function remove_search_placeholder() {
    searchNodes = document.getElementsByName('terms');
    searchField = searchNodes[0];
    if (searchField.value=="Type search terms here.") {
        searchField.value = '';
        searchField.style.color = '#000';
    }
}