function unfold_1()
{
	document.getElementById('disc_content_1').style.display = 'block';
}


var selectedTab = 1;
function openTab(nr) {
	if (selectedTab != '' && selectedTab != null) {
		document.getElementById('tab'+selectedTab).className = 'tab'+selectedTab+'default';
		document.getElementById('tab'+selectedTab+'Content').style.display = 'none';
	}
	
	document.getElementById('tab'+nr).className = 'tab'+nr+'selected';
	document.getElementById('tab'+nr+'Content').style.display = 'block';
	selectedTab = nr;
}