function MainSearch() {
    var query = jQuery('#main-search input[type="text"]').val();

    if (query != undefined && query != null && query != "") {
        if (query.replace(/ /g, "").length > 0) {
            window.location = '/search/q/' + escape(jQuery.trim(query)) + '/';
        }
    }
}

jQuery(document).ready(function () {

    // Search Button
    jQuery('#main-search .button').click(function (event) {
        MainSearch();
    });

    // Search enter-key
    jQuery('#main-search input[type="text"]').bind("keydown", function (event) {
        var keycode = (event.keyCode ? event.keyCode : (event.which ? event.which : event.charCode));
        if (keycode == 13) {
            event.preventDefault();
            MainSearch();
        }
    });

    jQuery('#txUp').click(function (e) {
        fontSize.increaseFontSize();
    });

    jQuery('#txDown').click(function (e) {
        fontSize.decreaseFontSize();
    });

});