function tabtdSwitch(new_tab, new_content) {
	
	document.getElementById('tdcontent_1').style.display = 'none';
	document.getElementById('tdcontent_2').style.display = 'none';
	document.getElementById('tdcontent_3').style.display = 'none';		
	document.getElementById(new_content).style.display = 'block';	
	

	document.getElementById('tdtab_1').className = '';
	document.getElementById('tdtab_2').className = '';
	document.getElementById('tdtab_3').className = '';		
	document.getElementById(new_tab).className = 'active';		

}