case "AddNewInstrument":
$instrument->AddNewInstrument();
break;
case "GetAllTools":
echo ArrToJson($instrument->GetAllTools());
break;
case "GetOneTool":
echo ArrToJson($instrument->GetOneTool());
break;
case "AddNewRevision":
echo ArrToJson($instrument->AddNewRevision($_GET["tool_id"], $_POST["box_stock_num"], $_POST["parameter_value"]));
break;
case "ShowAllRevisions":
echo ArrToJson($instrument->ShowAllRevisions());
break;
case "GetToolWearHistory":
echo ArrToJson($instrument->GetToolWearHistory());
break;
case "GetToolResource":
echo ArrToJson($instrument->GetToolResource($_GET["tool_id"]));
break;
case "GetToolWorkHistory":
echo ArrToJson($instrument->GetToolWorkHistory());
break;
case "AddNewToolWork":
echo ArrToJson($instrument->AddNewToolWork());
break;
case "GetToolWorkWearRelation":
echo ArrToJson($instrument->GetToolWorkWearRelation());
break;
}