function showHide(active) 
{
	// Eigenschappen ophalen van span object
	objS = document.getElementById(active);

	if (objS.style.display == 'block') 
	{ 
		state = 'none'; 
	} 
	else 
	{ 
		state = 'block'; 
	} 
	
	objS.style.display = state;

}