Ok so here's the exact directions on these functions i need to do

Complete the code for the following functions in the flowers.js file to provide functionality to the solution page. Once the code is completed, each function will run when the pageSetup() function is called when the body is loaded.


function displayBanner(currentDate)
{
/* get the month from current Date */

/* Set the imgsource variable to be the defaultLogo
image */

/* If month is 12, 1, or 2, set variable imgsource to
winterLogo or to the defaultLogo if not one of those
three months */

/* If month is 3, 4, or 5, set imgsource to springLogo
or to the defaultLogo if not one of those three
months */

/* If month is 6, 7, or 8, set imgsource to summerLogo
or to the defaultLogo if not one of those three
months */

/* If month is 10, 11, or 12, set imgsource to fallLogo
or to the defaultLogo if not one of those three
months */

/* Return the imagesource variable to set the myBanner
imgSrc attribute to that image*/
}

function calcDaysToSale(currentDate)
{
/* create a Date object for the 15th of the
current month */
/* compute difference in days between currentDate
And the 15th */
/* if the difference is positive return that value
Else return message that the sale is over for this
month */
}

Add a function to the head of the tutorial11solution.htm file to call the functions you created in flowers.js.


function pageSetup() {
{
/* get current Date */
/* set the banner image source */
/* set the sale form message input
to the appropriate message */

}

Add an event to the body tag to have the pageSetup() function called when the page is loaded.


here is the flowers.js file i have so far
Code:
<script type="text/javascript">

function displayBanner(currentDate) 
         {
           /* get the month from current Date */

	var month= d.getMonth();

  /* Set the imgsource variable to be the defaultLogo
     image */

	<img id="defaultLogo" src="defaultLogo.gif" />

           /* If month is 12, 1, or 2, set variable imgsource to
              winterLogo or to the defaultLogo if not one of those 
              three months */
	if (month == 12, 1, 2) { imgsource= "winterLogo.gif"; }
		else {imgsource = "defaultLogo.gif";}

           /* If month is 3, 4, or 5, set imgsource to springLogo 
              or to the defaultLogo if not one of those three
              months */


	if (month == 3, 4, 5) { imgsource= "springLogo.gif"; }
		else {imgsource = "defaultLogo.gif";}

           /* If month is 6, 7, or 8, set imgsource to summerLogo 
              or to the defaultLogo if not one of those three
              months */

	if (month == 6, 7, 8) { imgsource= "summerLogo.gif"; }
		else {imgsource = "defaultLogo.gif";}

           /* If month is 10, 11, or 12, set imgsource to fallLogo 
              or to the defaultLogo if not one of those three
              months */

	if (month == 10, 11, 12) { imgsource= "winterLogo.gif"; }
		else {imgsource = "defaultLogo.gif";}

           /* Return the imagesource variable to set the myBanner 
              imgSrc attribute to that image*/
         }

function calcDaysToSale(currentDate) 
         {
           /* create a Date object for the 15th of the 
              current month */

	saleDay = new Date ("December 15, 2012");
	

           /* compute difference in days between currentDate
              And the 15th */

	days = (saleDay - currentDate)/(1000*60*60*24);

           /* if the difference is positive return that value
              Else return message that the sale is over for this 
              month */

	if days > 0 return days;
		else alert("Sale is over for this month")
         }

</script>
and here is the html file

HTML Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Carol's Flowers</title>
<link href="flowers.css" rel="stylesheet" type="text/css" />
   <script type="text/javascript" src="flowers.js"></script>
    <script type="text/javascript">
        function pageSetup() {
         {
           /* get current Date */
thisDate= dateObj.getDate();

           /* set the banner image source */
           /* set the sale form message input 
              to the appropriate message  */

         }


     </script>

</head>

<body  class="oneColLiqCtrHdr">

<div id="container">
  <div id="header">
    <p><img name="myBanner" id="myBanner" src="" alt="Carol's Flowers" />
      <!-- end #header -->
    </p>
    <div id="links"><a href="#">Home</a> | <a href="#">General Arrangements</a> | <a href="#">Seasonal Designs</a> | <a href="#">Custom Orders</a> | <a href="#">Location</a></div>
  </div>
  <div id="mainContent">
    <table id="mainTable">
    <tr>
       <td width="201"><h1><img src="Flowers.JPG" alt="Random Flowers" width="200" height="255" /></h1></td>
       <td width="687">
    <p>Here at Carol's Flowers, we believe that there is a perfect floral arrangment for every occasion! Take a look around and see if there is anything you like. If we don't already have it, then we will create it for you!</p></td>
    </tr>
    </table>
    <!-- end #mainContent --></div>
  <div id="footer">
    <p> <form name="sale" id="sale">
      Days Until Mid Month Madness Sale : 
      <input type="text" name="saleMessage" id="saleMessage" /></form></p>
    <!-- end #footer --></div>
<!-- end #container --></div>
</body>
</html>
I'm obviously missing quite a bit. I followed every direction my textbook offered but it clearly didn't get me very far. I've also googled the problems (like anyone would do :P) and haven't found much clarification on how things work, just the codes that do what i need (sort of). Thanks in advance to anyone who offers help