function showHide(target, prefix, display) {
	
	// Oletusarvot
	if (prefix) target_id = prefix + '_' + target;
	else target_id = target;
	if (!display) display = 'block';
	
	// Jos elementti on suljettu, niin avataan se
	if (document.getElementById(target_id).style.display == 'none'){

		document.getElementById(target_id).style.display = display;
		if (document.getElementById('open_' + target).style.display == 'block') document.getElementById('open_' + target).style.display = 'none';
		if (document.getElementById('close_' + target).style.display == 'none') document.getElementById('close_' + target).style.display = display;

	// Jos elementti on avattu, niin suljetaan se
	} else {

		document.getElementById(target_id).style.display = 'none';
		if (document.getElementById('open_' + target)) document.getElementById('open_' + target).style.display = display;
		if (document.getElementById('close_' + target)) document.getElementById('close_' + target).style.display = 'none';

	}
}

/*showHideElements(target) {
	var i = (document.getElementsById(target)).length;
	
}*/