var timeout = 350;
var closetimer = 0;
var ddmenuitem = 0;
var ddActiveRootItem = 0;

function TopNavigationRootMenu_open() {
    TopNavigationRootMenu_canceltimer();
    TopNavigationRootMenu_close();
    TopNavigationRootMenu_clearImage();
    ddActiveRootItem = $(this);
    $(this).children('a').addClass('TopNavigationActive');
    ddmenuitem = $(this).find('ul').css('visibility', 'visible');
}

function TopNavigationRootMenu_close() {
    if (ddmenuitem) ddmenuitem.css('visibility', 'hidden');
    if (ddActiveRootItem) ddActiveRootItem.children('a').removeClass('TopNavigationActive');

 }

function TopNavigationRootMenu_timer() {
    closetimer = window.setTimeout(TopNavigationRootMenu_close, timeout); 
}

function TopNavigationRootMenu_canceltimer() {
    if (closetimer) {
        window.clearTimeout(closetimer);
        closetimer = null;
    }
}

function TopNavigationRootMenu_changeImage() {
    $('#clinicPreviewImage').attr("src", $(this).attr("imagePath"));
    $('#clinicPreviewCaption').attr("innerHTML", $(this).attr("imageCaption"));
}

function TopNavigationRootMenu_clearImage() {
    //$('#clinicPreviewImage').attr("src", "");
    //$('#clinicPreviewCaption').attr("innerHTML", "");
}

$(document).ready (
    function() {
        $('#TopNavigationRootMenu > li').bind('mouseover', TopNavigationRootMenu_open)
        $('#TopNavigationRootMenu > li').bind('mouseout', TopNavigationRootMenu_timer)
        $('#TopNavigationRootMenu #contentTopNavigationClinics li').bind('mouseover', TopNavigationRootMenu_changeImage)
        }
	);

document.onclick = TopNavigationRootMenu_close;