$(document).ready(function setDropdownHeader() {
    var currentUrl = location.href;
    if (currentUrl.match(/filterItemsByValue1/)) {
        var filterValue = gqp('filterItemsByValue1');

        $('option').each(function () {
            if (($(this).val()) == filterValue) {
                $(this).attr('selected', 'selected');
            }
        });
    }
});

//function get querystring parameter
function gqp(name) {
    name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
    var regexS = "[\\?&]" + name + "=([^&#]*)";
    var regex = new RegExp(regexS);
    var results = regex.exec(window.location.href);
    if (results == null)
        return "";
    else
        return results[1];
}


function changeClass(divID, classNameVar) {
    document.getElementById(divID).className = classNameVar;
}

function slideContributorArea() {
    $("#s4-ribbonrow").toggle();
}

function toggleFontResizeTip() {
    $("#decreaseFontsize").toggle();
}