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

function mopen(hdid, ddid)
{	
        mcancelclosetime();
        if(hdmenuitem) 
        {
            hdmenuitem.style.background = 'transparent';

            hdmenuitem.style.border = '0';
        }
        if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
        ddmenuitem = document.getElementById(ddid);
        if(ddmenuitem != null)
        {
            ddmenuitem.style.visibility = 'visible';
            hdmenuitem = document.getElementById(hdid);	
        }  
}
function mclose()
{
        if(ddmenuitem) 
        {
            ddmenuitem.style.visibility = 'hidden';
        }
        if(hdmenuitem) 
        {
            hdmenuitem.style.background = 'transparent';
            hdmenuitem.style.padding = '5px 1px 4px 1px';
            hdmenuitem.style.border = '0';
        }
}
function mclosetime()
{
        closetimer = window.setTimeout(mclose, timeout);
}
function mcancelclosetime()
{
        if(closetimer)
        {
                window.clearTimeout(closetimer);
                closetimer = null;
        }
}
document.onclick = mclose;