function tabSwitch(active, number, tab_prefix, content_prefix) {
	
	// Deactivate all tabs and tab content
   for (var i = 1; i < number + 1; i++) {
	  document.getElementById(content_prefix + i).style.display = 'none';
	  document.getElementById(tab_prefix + i).className = '';
	}
   
   // Activate selected tab and tab content
	document.getElementById(content_prefix + active).style.display = 'block';
	document.getElementById(tab_prefix + active).className = 'active';	   
}