function tabSwitch(new_tab, new_content) {
	
	document.getElementById('main').style.display = 'none';
	document.getElementById('es').style.display = 'none';
	document.getElementById('network').style.display = 'none';
	document.getElementById('web').style.display = 'none';
	document.getElementById('software').style.display = 'none';
	document.getElementById(new_content).style.display = 'block';	
	

	document.getElementById('tab_1').className = '';
	document.getElementById('tab_2').className = '';
	document.getElementById('tab_3').className = '';
	document.getElementById('tab_4').className = '';
	document.getElementById('tab_5').className = '';
	document.getElementById(new_tab).className = 'active';		

}