Ok, after about 10.2 years of trying to figure out how to call a function in the header I gave up. However - there is good news.

I started to wonder if it was possible to make a popup menu just using css and not javascript. I searched online and a bunch of sites said you could not do this. However, thanks to an angel that appeared in my room, I was told how to do this. So - for anyone who wants a popup menu in their store - here is the EASIEST way to do it.

(I am going to list what I did.)

1. First I created the menu code. If you are going to create a popup menu - you will want to use this code as a template as I had to tinker around with it (formatting) for awhile to get it to work: (the code has 4 spaces between each parent menu item so it is easier to see what is what.)

Also - after you are done - just paste the code into your tpl_header.php file wherever you need the menu to be.

Code:
<ul id='menu'> 
 <li><a class='sub' href='#.html'><b>Access Control</b><!--[if gte IE 7]><!--></a><!--<![endif]-->
 <!--[if lte IE 6]><table><tr><td><![endif]-->
 <ul>
 <li><a href=''>Biometric Readers</a></li>
 <li><a href=''>Keyless Entry</a></li>
 <li><a href=''>Keypads & Readers</a></li>
 </ul>
 <!--[if lte IE 6]></td></tr></table></a><![endif]-->
 </li>
 
 
 
 
 <li class='current'><a class='sub' href=''><b>Equipment</b><!--[if gte IE 7]><!--></a><!--<![endif]-->
 <!--[if lte IE 6]><table><tr><td><![endif]-->
 <ul>
 <li><a class='fly' href='#url'>Equipment<!--[if gte IE 7]><!--></a><!--<![endif]-->
 <!--[if lte IE 6]><table><tr><td><![endif]-->
 <ul>
 <li><a href=''>Modules</a></li>
 <li><a href=''>Glass Breaks</a></li>
 <li><a href=''>Hold-Up & Panic</a></li>
 <li><a href=''>Motion Sensors</a></li>
 <li><a href=''>Photo Electric Beams</a></li>
 <li><a href=''>Relays & More</a></li>
 <li><a href=''>RF Receivers</a></li>
 <li><a href=''>Siren Speakers/Strobes</a></li>
 </ul>
 <!--[if lte IE 6]></td></tr></table></a><![endif]-->
 </li>
 <li><a class='fly' href='#url'>Doors / Windows<!--[if gte IE 7]><!--></a><!--<![endif]-->
 <!--[if lte IE 6]><table><tr><td><![endif]-->
 <ul>
 <li><a href=''>Door Alarms</a></li>
 <li><a href=''>Hardwire Sensors</a></li>
  <li><a href=''>Wireless Sensors</a></li>
 </ul>
 <!--[if lte IE 6]></td></tr></table></a><![endif]-->
 </li>
 <li><a class='fly' href='#url'>Control<!--[if gte IE 7]><!--></a><!--<![endif]-->
 <!--[if lte IE 6]><table><tr><td><![endif]-->
 <ul>
 <li><a href=''>Keyfobs</a></li>
 <li><a href=''>Keypads</a></li>
  <li><a href=''>Remotes</a></li>
 </ul>
 <!--[if lte IE 6]></td></tr></table></a><![endif]-->
 </li>
 <li><a class='fly' href='#url'>Fire Protection<!--[if gte IE 7]><!--></a><!--<![endif]-->
 <!--[if lte IE 6]><table><tr><td><![endif]-->
 <ul>
 <li><a href=''>Smoke Detectors</a></li>
 </ul>
 <!--[if lte IE 6]></td></tr></table></a><![endif]-->
 </li>
 <li><a class='fly' href='#url'>Power Supplies<!--[if gte IE 7]><!--></a><!--<![endif]-->
 <!--[if lte IE 6]><table><tr><td><![endif]-->
 <ul>
 <li><a href=''>Alarm Batteries</a></li>
 <li><a href=''>Battery Chargers</a></li>
  <li><a href=''>Zone/Power</a></li>
 </ul>
 <!--[if lte IE 6]></td></tr></table></a><![endif]-->
 </li>
 <li><a href=''>Driveway Alarms</a></li>
 <li><a href=''>Enclosures</a></li>
 <li><a href=''>Life Safety</a></li>
 <li><a href=''>Signs & Decals</a></li>
 <!--[if lte IE 6]></td></tr></table></a><![endif]-->
 </li>
 <li><a class='fly' href='#url'>Communications<!--[if gte IE 7]><!--></a><!--<![endif]-->
 <!--[if lte IE 6]><table><tr><td><![endif]-->
 <ul>
 <li><a href=''>Cellular</a></li>
  <li><a href=''>Cellular Backup</a></li>
 <li><a href=''>Dialers</a></li>
 <li><a href=''>iP</a></li>
  </ul>
 <!--[if lte IE 6]></td></tr></table></a><![endif]-->
 </li>
 </ul>
 
 
 
 
 <li><a class='sub' href='#.html'><b>Alarm Systems</b><!--[if gte IE 7]><!--></a><!--<![endif]-->
 <!--[if lte IE 6]><table><tr><td><![endif]-->
 <ul>
 <li><a href=''>Control Panels</a></li>
 <li><a href=''>Hardwired Alarms</a></li>
 <li><a href=''>Hybrid Alarms</a></li>
 <li><a href=''>Wireless Alarms</a></li>
 </ul>
 <!--[if lte IE 6]></td></tr></table></a><![endif]-->
 </li>
 
 
 
 
 <li><a class='sub' href='#.html'><b>Commercial</b><!--[if gte IE 7]><!--></a><!--<![endif]-->
 <!--[if lte IE 6]><table><tr><td><![endif]-->
 <ul>
 <li><a href=''>Alarm Accessories</a></li>
 <li><a href=''>Fire Alarm Panels</a></li>
 </ul>
 <!--[if lte IE 6]></td></tr></table></a><![endif]-->
 </li>
 
 
 
 
 <li><a class='sub' href=''><b>Automation</b><!--[if gte IE 7]><!--></a><!--<![endif]-->
 <!--[if lte IE 6]><table><tr><td><![endif]-->
 <ul>
 <li><a href=''>Central Vacuum</a></li>
 <li><a href=''>Envir. Controls</a></li>
  <li><a href=''>Garage Controls</a></li>
 <li><a href=''>Gate Controls</a></li>
  <li><a href=''>Intercoms</a></li>
 <li><a href=''>Power Supplies</a></li>
  <li><a href=''>Structure Wiring</a></li>
 <li><a href=''>X10 Automation</a></li>
 </ul>
 <!--[if lte IE 6]></td></tr></table></a><![endif]-->
 </li>
 
 
 
 
 <li><a class='sub' href=''><b>Surveillance</b><!--[if gte IE 7]><!--></a><!--<![endif]-->
 <!--[if lte IE 6]><table><tr><td><![endif]-->
 <ul>
 <li><a href=''>Camera Acc.</a></li>
 <li><a href=''>Camera Kits</a></li>
  <li><a href=''>Cameras</a></li>
  <li><a href=''>Video Recorders</a></li>
  <li><a href=''>Security Monitors</a></li>
 </ul>
 <!--[if lte IE 6]></td></tr></table></a><![endif]-->
 </li> 
 
 
 
 
  <li><a class='sub' href=''><b>Wire / Cable</b><!--[if gte IE 7]><!--></a><!--<![endif]-->
 <!--[if lte IE 6]><table><tr><td><![endif]-->
 <ul>
 <li><a href=''>Alarms</a></li>
 <li><a href=''>Audio/Video</a></li>
  <li><a href=''>Firewire</a></li>
  <li><a href=''>networking</a></li>
  <li><a href=''>Surveillance</a></li>
 </ul>
 <!--[if lte IE 6]></td></tr></table></a><![endif]-->
 </li>
 </ul>
2. Then the CSS code:

Code:
#menu {padding:0; margin:0; list-style:none; float:center; height:25px; position:relative; z-index:500; font-family:arial, verdana, sans-serif;}
#menu li {float:left; margin-right:1px;}
#menu li a {display:block; float:left; height:25px; line-height:25px; background:#000000; color:#ccc; text-decoration:none; font-size:11px; font-weight:bold; padding:0 30px 0 20px;}


#menu table {border-collapse:collapse; width:0; height:0; position:absolute; top:0; left:0;}

/* Default link styling */

/* Style the list OR link hover. Depends on which browser is used */

#menu li a:hover {z-index:200; position:relative;color:#ffffff; background-color:#000000;}
#menu li:hover {position:relative; z-index:200;}

#menu li:hover > a {color:#ffffff; background:#000000;}
#menu li:hover > a.sub {color:#ffffff; background-color:#000000;}

#menu li.current a {color:#ffffff; background:#000000;}

#menu li a.sub {background: #000000 url(/down-arrow.gif) no-repeat right center;}
#menu li.current a.sub {color:#ffffff; background:#000000 url(down-arrow.gif) no-repeat right center;;}

#menu :hover ul {left:0; top:25px; width:160px; background:#000000;}

/* keep the 'next' level invisible by placing it off screen. */
#menu ul, 
#menu :hover ul ul {position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none;}

#menu :hover ul :hover ul
{left:120px; top:-1px; background:#000000; white-space:nowrap; width:100px; z-index:200; height:auto;}

#menu :hover ul li {margin:0; border-top:1px solid #000000;}
#menu :hover ul li a {width:160px; padding:0; text-indent:10px; background:#000000; color:#ccc; height:30px; line-height:30px;}
#menu :hover ul li a.fly {background:#000000 url(/right-arrow.gif) no-repeat right center;}

#menu :hover ul :hover {background-color:#000000; color:#ffffff;}
#menu :hover ul :hover a.fly {background-color:#000000; color:#ffffff;}

#menu :hover ul li.currentsub a {background:#000000; color:#ffffff;}
#menu :hover ul li.currentsub a.fly {background:#000000 url(right-arrow.gif) no-repeat right center; color:#ffffff;}

#menu :hover ul :hover ul li a {width:140px; padding:0; text-indent:10px; background:#000000; color:#ffffff;}
#menu :hover ul :hover ul :hover {background-color:#000000; color:#ffffff;}

#menu :hover ul :hover ul li.currentfly a,
#menu :hover ul :hover ul li.currentfly a:hover {background:#000000; color:#ffffff;}
3. Then I pasted the CSS code at the bottom of the stylesheet.css file that is being used by my custom_template in custom_template/css/

4. That is it. No weird call functions or anything else.


If anyone is wondering how I inserted a flash file into the tpl_header.php file - I uploaded the SWF file to custom_template/media/ and wrote and pasted this code into the tpl_header.php file: (If you use it, you'll only have to change the file path and file name, background color and height)

Code:
<object type="application/x-shockwave-flash" data="includes/templates/custom_template/media/banner.swf" width="100%" height="250">
<param name="movie" value="includes/templates/custom_template/media/banner.swf" />
<param name="quality" value="high"><param name="BGCOLOR" value="#000000">
<param name="menu" value="false">
</object>