Email Google Form Spreadsheet data as Attachment using Google Script

google_app_script.js

/*
* author: bitwiser
* for complete tutorial, visit: http://bitwiser.in/2014/04/22/email-google-form-data-as-pdf.html
*/

var START_ROW = 2;
/**
 * Retrieves all the rows in the active spreadsheet that contain data and logs the
 * values for each row.
 * For more information on using the Spreadsheet API, see
 * https://developers.google.com/apps-script/service_spreadsheet
 */
function readRows() {
  Logger.clear();
  var sheet = SpreadsheetApp.getActiveSheet();
  var rows = sheet.getDataRange();
  var numRows = rows.getNumRows();
  var values = rows.getValues();

  for (var i = 0; i <= numRows - 1; i++) {
    var row = values[i];
    Logger.log(row);
  }
};

/**
 * Adds a custom menu to the active spreadsheet, containing a single menu item
 * for invoking the readRows() function specified above.
 * The onOpen() function, when defined, is automatically invoked whenever the
 * spreadsheet is opened.
 * For more information on using the Spreadsheet API, see
 * https://developers.google.com/apps-script/service_spreadsheet
 */
function onOpen() {
  var sheet = SpreadsheetApp.getActiveSpreadsheet();
  var entries = [{
    name : "Send Data to Email",
    functionName : "sendToEmail"
  },
  {
    name: "Send Email to All",
    functionName: "sendToAll"
  },
  {
    name: "Send Email to Admins",
    functionName: "sendToAdmins"
  }
  ];
  sheet.addMenu("Functions", entries);
};

/*
This function is triggered when a new registration takes place on the desired google spreadsheet form
*/

function sendReply(e){
  var email = e.values[5];
  var body = 'Hey '+e.values[1]+', you have been registered for CSPL 2k14 with nick "'+e.values[2]+'". Any further information will be sent to you on this email or your phone number. For any queries, ping SilverCrow @ pranav.raj18@gmail.com.';
  Logger.log(body);
  if(email!=''){
    var sheet = SpreadsheetApp.getActiveSheet();
    var lastRow = sheet.getLastRow();
    Logger.log(lastRow);
    sheet.getRange(lastRow, getColIndexByName("Status")).setValue(1);
    MailApp.sendEmail(email,'CSPL 2k14 registration',body);
  }
}

function sendToAll(){
  Logger.clear();
  var sheet = SpreadsheetApp.getActiveSheet();
  var rows = sheet.getDataRange();
  var numRows = rows.getNumRows();
  var values = rows.getValues();
  
  for( var i=1;i<=numRows;i++){
    var row = values[i];
    var em = '';
    if(row){
      em = row[5];
    }
    if(em!='' && row[6]!=1){
      Logger.log(em);
      var body = 'Hey '+row[1]+', you have been registered for CSPL 2k14 with nick "'+row[2]+'". Any further information will be sent to you on this email or your phone number. For any queries, ping SilverCrow @ pranav.raj18@gmail.com.';
      Logger.log(body);
      MailApp.sendEmail(em, 'CSPL 2k14 Registration', body);
      sheet.getRange(START_ROW+i,7).setValue(1);
    }
  }
}

function getColIndexByName(colName) {
  var sheet = SpreadsheetApp.getActiveSheet();
  var numColumns = sheet.getLastColumn();
  var row = sheet.getRange(1, 1, 1, numColumns).getValues();
  for (i in row[0]) {
    var name = row[0][i];
    if (name == colName) {
      return parseInt(i) + 1;
    }
  }
  return -1;
}

function sendToAdmins(){
  var id = SpreadsheetApp.getActiveSpreadsheet().getId();
  var spreadsheetFile = DocsList.getFileById(id); 
  var blob = spreadsheetFile.getAs('application/pdf');
  var adminEmails = ['admin1@gmail.com','admin2@gmail.com','admin3@gmail.com'];
  for(var i=0;i<adminEmails.length;i++){
    MailApp.sendEmail(adminEmails[i], 'Event Registration Data', '', {attachments:[blob]});
  }
}

function sendToEmail(){
  var name = Browser.inputBox('Enter email', Browser.Buttons.OK_CANCEL);
  if(name!=="cancel" && name!==""){
    var id = SpreadsheetApp.getActiveSpreadsheet().getId();
    var spreadsheetFile = DocsList.getFileById(id); 
    var blob = spreadsheetFile.getAs('application/pdf');
    MailApp.sendEmail(name, 'Event Registration Data', '', {attachments:[blob]});
  }
}

Is it possible to use this code if the email address is located on a different tab and the sheet that I want to send as a pdf is also coming from a different one?

I tried using this code but it gives me this error: ReferenceError: DocsList is not defined

Here's the file that I have. I'm trying to send the Ticket form to one of the employees listed on Employee List tab.

https://docs.google.com/spreadsheets/d/15apdB5PqAuCNjKF7FldZqZTYu5lODUTH5e3XtiBBb4o/edit#gid=0