PHP Script Help

General information for the website: ecommerce
Kind of development: Customization of existing website
Description of requirements/features: Working on a site with a mysql category structure as follows:

CREATE TABLE IF NOT EXISTS `shopcats` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`websiteid` int(11) NOT NULL,
`name` varchar(200) NOT NULL,
`slug` varchar(200) NOT NULL,
`parentid` int(11) NOT NULL,
`shownav` varchar(200) NOT NULL,
`order` int(11) NOT NULL,
`img` varchar(255) NOT NULL,
`content` text NOT NULL,
`metatitle` varchar(255) NOT NULL,
`metadesc` varchar(255) NOT NULL,
`metakeywords` varchar(255) NOT NULL,
`googleprod` varchar(400) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=538 ;

I am trying to create an accordion menu to output multilevel categories up to 5 levels, here is the code we have so far:

<?php
$blogcats = mysql_query("SELECT * FROM shopcats WHERE websiteid='".$thisWebsiteID."' AND shownav!='1' AND parentid='0' ORDER by `order`");

echo '';

while($blogcatsrs=mysql_fetch_array($blogcats))
{
// get current category
if($_GET['shopcat']==$blogcatsrs['slug'])
{
echo '<div class="ecomCategoryOn';
}
else
{
echo ''.$blogcatsrs['name'].'';


//get sub categories


if($_GET['shopcat']!="")
{
//get current parent
$getslug = mysql_query("SELECT * FROM shopcats WHERE websiteid='".$thisWebsiteID."' AND slug='".$_GET['shopcat']."' ORDER BY id DESC");
$getslugrs = mysql_fetch_array($getslug);

if($getslugrs['parentid']=="0")
{
$blogcatschildren = mysql_query("SELECT * FROM shopcats WHERE websiteid='".$thisWebsiteID."' AND shownav!='1' AND parentid='".$getslugrs['id']."' ORDER by `order`");
}
else
{

$blogcatschildren = mysql_query("SELECT * FROM shopcats WHERE websiteid='".$thisWebsiteID."' AND shownav!='1' AND parentid='".$getslugrs['parentid']."' ORDER by `order`");

//echo "SELECT * FROM shopcats WHERE websiteid='".$thisWebsiteID."' AND shownav!='1' AND parentid='".$getslugrs['parentid']."' ORDER by `order`";
}

while($blogcatsrschildren=mysql_fetch_array($blogcatschildren))
{
if($blogcatsrs['id'] == $blogcatsrschildren['parentid'])
{
// get current category
if($_GET['shopcat']==$blogcatsrschildren['slug'])
{
echo '<div class="ecomCategorySubOn';
}
else
{
echo ''.$blogcatsrschildren['name'].'';


//get third level

if($getslugrs['id']==$blogcatsrschildren['id'])
{

$checkthird = mysql_query("SELECT * FROM shopcats WHERE websiteid='".$thisWebsiteID."' AND shownav!='1' AND parentid='".$getslugrs['id']."' ORDER by `order`");

while($checkthirdrs=mysql_fetch_array($checkthird))
{
// get current category
if($_GET['shopcat']==$checkthirdrs['slug'])
{
echo '<div class="ecomCategorySubOn2';
}
else
{
echo ''.$checkthirdrs['name'].'';
}

}
//get third level


}
}
}


}


echo 'Show All';
echo '



And here is where this shows on the website: http://www.b-invogue.co.uk/shop/clothing/ (the category menu on the right)
Extra notes: