Google Apps Script to fill in a Document template with Spreadsheet data

gistfile1.js

function onOpen() {
  var menuEntries = [ {name: "Create Diary Doc from Sheet", functionName: "createDocFromSheet"}];
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  ss.addMenu("Fitness Diaries", menuEntries);
}

function createDocFromSheet(){
  var templateid = "1O4afl8SZmMxMFpAiN16VZIddJDaFdeRBbFyBtJvepwM"; // get template file id
  var FOLDER_NAME = "Fitness Diaries"; // folder name of where to put completed diaries
  // get the data from an individual user
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = ss.getActiveSheet();
  var data = sheet.getRange(2, 1, sheet.getLastRow()-1, sheet.getLastColumn()).getValues();
  
  var username = sheet.getName(); // get their email (from sheet name)
  
  // create a new document and add student as editor
  var newDoc = DocumentApp.create("Fitness Diary - "+username);
  newDoc.addEditor(username);
  // move file to right folder
  var file = DocsList.getFileById(newDoc.getId());
  var folder = DocsList.getFolder(FOLDER_NAME);
  file.addToFolder(folder);
  
  // for each week's entry fill in the template with submitted data 
  for (var i in data){
    var row = data[i];
    
    // next bit taken from csmithiowa's code http://www.google.com/support/forum/p/apps-script/thread?tid=70aae4c0beabeac7&hl=en
    var docid = DocsList.getFileById(templateid).makeCopy().getId();
    var doc = DocumentApp.openById(docid);
    var body = doc.getActiveSection();
    body.replaceText("%WEEKNO%", row[2]);
    body.replaceText("%TIMESTAMP%", Utilities.formatDate(row[1], "GMT", "HH:mm dd/MM/yyyy"));
    body.replaceText("%SLEEPQUAL%", row[4]);
    body.replaceText("%ENERGYLVL%", row[5]);
    body.replaceText("%MOTIVLVL%", row[6]);
    body.replaceText("%OUTLINE%", row[7]);
    body.replaceText("%PROGRESS%", row[8]);
    doc.saveAndClose();
    // end of csmithiowa's
    
    appendToDoc(doc, newDoc); // add the filled in template to the students file
    DocsList.getFileById(docid).setTrashed(true); // delete temporay template file
  }
  ss.toast("Diary has been complied");
}

// Taken from Johninio's code http://www.google.com/support/forum/p/apps-script/thread?tid=032262c2831acb66&hl=en
function appendToDoc(src, dst) {
  // iterate accross the elements in the source adding to the destination
  for (var i = 0; i < src.getNumChildren(); i++) {
    appendElementToDoc(dst, src.getChild(i));
  }
}

function appendElementToDoc(doc, object) {
  var type = object.getType(); // need to handle different types para, table etc differently
  var element = object.removeFromParent(); // need to remove or can't append
  Logger.log("Element type is "+type);
  if (type == "PARAGRAPH") {
    doc.appendParagraph(element);
  } else if (type == "TABLE") {
    doc.appendTable(element);
  } // else if ... I think you get the gist of it
}
// end of Johninio's