var hpoTrainning_oppenedItem = false;
var hpoTrainning_timer = false;

function hpoTraining_showSubMenu(i)
{
	if ( hpoTrainning_timer )
		clearTimeout(hpoTrainning_timer);
	
	if ( hpoTrainning_oppenedItem )
		hpoTraining_hideSubMenu(hpoTrainning_oppenedItem);
	
	if ( (elem = document.getElementById('submenu_'+ i)) )
	{
		elem.style.display = 'block';
		hpoTrainning_oppenedItem = i;
		
		hpoTrainning_timer = setTimeout("hpoTraining_hideSubMenu("+ i +");", 2000);
	}
}

function hpoTraining_hideSubMenu(i)
{
	if ( (elem = document.getElementById('submenu_'+ i)) )
		elem.style.display = 'none';
		
	if ( i == hpoTrainning_oppenedItem )
		hpoTrainning_oppenedItem = false;
}