function openSection(id) 
{
	for (i = 1; i < 11; i++) 
	{
		document.getElementById('section' + i).style.display = 'none';
		var tab = document.getElementById('section' + i + 'tab');
		if (tab != undefined) tab.className = 'tab';
	}

	document.getElementById('gallery').style.display = 'none';
	var tab = document.getElementById('gallerytab');
	if (tab != undefined) tab.className = 'tab';

	document.getElementById('files').style.display = 'none';
	var tab = document.getElementById('filestab');
	if (tab != undefined) tab.className = 'tab';
	
	document.getElementById(id).style.display = '';
	document.getElementById(id + 'tab').className = 'tabselected';
	return false;
};