var timeout    = 200;
var closetimer = 0;
var ddmenuitem = 0;

function jsddm_open(){
    jsddm_canceltimer();
    jsddm_close();
    ddmenuitem = $(this).find('.submenu').show();
}

function jsddm_close(){  if(ddmenuitem) ddmenuitem.hide();}

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

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