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

function jsddm_open(id)
{  jsddm_canceltimer();
   jsddm_close();
	ddmenuitem = id
	$('#head'+id).addClass('hover');
   $('#cont'+id).stop().css('visibility','visible');
	}
	

function jsddm_close()
{  if(ddmenuitem){
	$('#head'+ddmenuitem).removeClass('hover');
	$('#cont'+ddmenuitem).stop().css('visibility','hidden');
	}
}

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

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