function getSearch() {
    var keyword = document.getElementById("txtSearch").value;

    if (keyword == "Search our site") {
        document.getElementById("txtSearch").value = '';
        document.getElementById("txtSearch").focus();
    }
    else if (keyword == "") {
        document.getElementById("txtSearch").focus();
    }
    else {
        document.location = "search.aspx?q=" + encodeURIComponent(keyword);
    }
}

function detectspecialkeys(e) {
    var evtobj = window.event ? event : e
    if (evtobj.keyCode == 13) {
        getSearch();
        return false;

    }
}

function clearText(field) {
    if (field.defaultValue == field.value) field.value = '';
    else if (field.value == '') field.value = '';

}