Themes: Customize Header

I am trying to use this code to put a graphic in the header to match which album they are currently looking at.

Here is an example of how I want it to look:
http://www.aberdeenshirepoms.com/gallery/available

<?php
$collection_name=="Males";
switch ($collections_name['title'])
{

case "Males" :
echo "<p align='center'><img border='0' src='/malesb.gif' width='134' height='40'><br></p>";
break;
case "Females" :
echo "<p align='center'><img border='0' src='/femalesb.gif' width='170' height='40'><br></p>";
break;
case "Available" :
echo "<p align='center'><img border='0' src='/availb.gif' width='190' height='40'><br></p>
<div align='center'>
<center>
<table border='0' width='85%'>
<tr>
<td width='100%' style='text-align:justify'><font size='3' color='#FFFFFF'><br>
<font face='Verdana'>Any puppy on this page can be held with a $200.00 deposit which will go toward the
purchase price until adoption date at 8 weeks of age. The deposit is non-refundable. If for any reason
the buyer changes his/her mind on the puppy, he/she may choose a different one when one is available
on a first come first serve basis. We aim to please and make sure you are happy with your Pom Puppy!
<br><br></td>
</tr>
</table>
</div>";
break;
}
?>

This is the link to the Available album using Plogger:
http://www.aberdeenshirepoms.com/plogger/index.php?level=album&id=5

I need to know how to code the album name into this code:

$collection_name=="Males";
switch ($collections_name['title'])

Can anyone help?

Maria