var timeout = 500;
var closetimer = 0;
var ddmenuitem = 0;

function jsddm_open()
{
    jsddm_canceltimer();
    jsddm_close();
    ddmenuitem = $(this).find('ul').css('visibility', 'visible');
}

function jsddm_close()
{ if (ddmenuitem) ddmenuitem.css('visibility', 'hidden'); }

function jsddm_timer()
{ closetimer = window.setTimeout(jsddm_close, timeout); }

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

$(document).ready(function()
{
    $('#mainNav > li').bind('mouseover', jsddm_open)
    $('#mainNav > li').bind('mouseout', jsddm_timer)
});

document.onclick = jsddm_close;


function doRO(obj)
{

    if ($(obj).attr("src") == "/images/" + obj.id + "B.jpg")
    {

        $(obj).attr("src", "/images/" + obj.id + "A.jpg");
    }
    else
    {
        $(obj).attr("src", "/images/" + obj.id + "B.jpg");
    }
}