function openCloseDiv( id ){
		var title = $('blockTitle' + id)
		var block = $('blockDescription' + id)
		if( ! (title && block)  )
			return;
		if( title.hasClassName('closedBlockTitle') )
		{
			title.removeClassName('closedBlockTitle');
			block.removeClassName('closedBlock');
			title.addClassName('openedBlockTitle');
			block.addClassName('openedBlock');
			
		} else {
			title.removeClassName('openedBlockTitle');
			block.removeClassName('openedBlock');
			title.addClassName('closedBlockTitle');
			block.addClassName('closedBlock');
		}
	}