function tabSwitch(new_tab, new_content) {
	
	document.getElementById('geldzaken').style.display = 'none';
	document.getElementById('economie').style.display = 'none';
	document.getElementById('beurs').style.display = 'none';
	document.getElementById(new_content).style.display = 'block';	
	

	document.getElementById('tab_6').className = '';
	document.getElementById('tab_7').className = '';
	document.getElementById('tab_8').className = '';
	document.getElementById(new_tab).className = 'active';		

}