st0rmy29

function onOpen() {//adds new menu item to active spreadsheet
  var sheet = SpreadsheetApp.getActiveSpreadsheet();
  var entries = [
    {name : "Calculate distance", functionName : "findDistance"},
    {name : "Clear distance", functionName : "clearIDs"}];
  sheet.addMenu("Distance measure", entries);
}

function clearIDs() {
  var sheet = SpreadsheetApp.getActiveSpreadsheet();