// Set periodical function
Event.observe(window, 'load', function() {
	
	newHeight = $('content').getHeight();
	if ($('menuLeft').getHeight() > newHeight) 
		newHeight = $('menuLeft').getHeight();
	
	if ($('sub-section').getHeight() > newHeight)
		newHeight = $('sub-section').getHeight();

	if (newHeight < 400) newHeight = 400;
	
	$('menuLeft').setStyle({height: newHeight+'px'});
	$('content').setStyle({height: newHeight-10+'px'});
	$('sub-section').setStyle({height: newHeight+'px'});
});