/**
 * Javascript used for site element searchbox
 */
function searchbox() {
    var searchbox = $('input[name=trefwoord]');

    searchbox.focus(
        function() {
            if(this.value == 'trefwoord' || 
               this.value == '') {
                this.value = '';
            }
        }
    );

    searchbox.blur(
        function() {
            if(this.value == '') {
                this.value = 'trefwoord'; 
            }
        }
    );
}

$(document).ready(searchbox);