Flash CS6 Actionscript 3 errors, please help!

Question

This is my code, and I am having the following errors:
else is unexpected, expecting identifier, and expecting rightbrace before end of program.
I'm sorry if it's really ridiculously easy, I'm a complete noob at flash, and coding all together! In fact, this is my first day.
Could anyone explain what's wrong, and how I can fix it? I'm learning from books I bought from Amazon, and internet tutorials.
import flash.events.Event;
import flash.events.MouseEvent;
lolyoulostnoob.visible = false;
again.visible = false;
var lost = false;
var redo = false;
var health = 3;
var isLeft = false;
var isRight = false;
addEventListener(Event.ENTER_FRAME,hank)
function hank(e:Event){
  if (bob.x < 54.9) {
  else if(bob.x > 596.05){
     bob.x -54.9
  bob.x 596.05;
  if(isLeft){
  bob.x -= 10;
     if(isRight){
        bob.x += 10;
  var rand = Math.random()*550;
  mc_1.y = mc_1.y + 10;
  mc_2.y = mc_2.y + 10;
  mc_3.y = mc_3.y + 10;
    if(mc_1.y >= 427.6){
       mc_1.y = -73.4;
       mc_1.x = rand;
       run = true;
  if(mc_2.y > 427.6){
       mc_2.y = -73.4;
       mc_2.x = rand;
       run = true;
  if(mc_3.y > 427.6){
       mc_3.y = -73.4;
       mc_3.x = rand;
       run = true;
  if(health == 0){
    lost = true;
  if((bob.hitTestObject(mc_1)||if.bob.hitTestObject(mc_2)||if.bob.hitTestObject(mc_3)) && run ){
       health--;
    run =  false;
  if(lost) {
    lolyoulostnoob.visible = !false;
    again.visible = !false;
    bob.visible = !true;
    mc_1.visible = !true;
    mc_2.visible = !true;
    mc_3.visible = !true;
    lost = false;
  if(redo) {
    lolyoulostnoob.visible = false;
    again.visible = false;
    bob.visible = true;
    mc_1.visible = true;
    mc_2.visible = true;
    mc_3.visible =true;
    health = 3;
    redo = false;
again.addEventListener(MouseEvent.MOUSE_UP,p)
function p(e:MouseEvent){
  redo = true;
stage.addEventListener(KeyboardEvent.KEY_DOWN,pressed)
function pressed(event:KeyboardEvent){
  if(event.keyCode == Keyboard.LEFT){
  isLeft = true;
    else if(event.keyCode == Keyboard.RIGHT){
  isRight = true;
  stage.addEventListener(KeyboardEvent.KEY_UP,released)
function released(event:KeyboardEvent){
  if(event.keyCode == Keyboard.LEFT){
  isLeft = false;
    else if(event.keyCode == Keyboard.RIGHT){
  isRight = false;

Answer 1

There could be more, but this might be the one where the error is pointing...
function hank(e:Event){
  if (bob.x < 54.9) {
}  else if(bob.x > 596.05){ // you need a closing (right) brace before the else
    bob.x -54.9
  bob.x 596.05;
Usually the error will indicate a line, so if you have that information you should only post the related code.  You will find it beneficial to go into the Flash Publish Settings and select the option to Permit Debugging.  THis can end up adding extra information to the error messages that you can include in your postings.