var the_timeout 	= 0;
var delay 		= 50; //milliseconds

function startHide( obj_id, time_out )
{
	obj = $(obj_id);
	if( obj && obj.style.display == 'block' )
	{
		the_timeout = setTimeout("switchVisibility('"+ obj_id +"')", time_out );
	}
}

function stopHide()
{
	if ( the_timeout )
	{
		clearTimeout(the_timeout);
	}
}

function loadCalendar( id, year, month, day )
{
	_calendar = $('calendar');
	if ( _calendar )
	{
		_calendar.innerHTML = _msg_loading ;

  		var req = new Ajax.Request('calendar', {
             						method: 'post',
             						parameters: {id: id, year: year, month: month, day: day},
               			  		onComplete: function(req)
               			  		{
               			  			_calendar.innerHTML =  req.responseText;
               			  		}
     				  }
     			 );
	}
}