Query Based On Multi-Select Dropdown

[DS928]

I am trying to run a query based on a multi-select dropdown.. I have the dropdown built. I am getting the values that are selected, but I am not getting the results, I think its in the query. Also the page is reloading, which is not good! Here is what I have so far.

<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" id="Test">
    <select name="p[]" size="10" style="width:170px" multiple="multiple" method="POST">
            <?php
			error_reporting(E_ALL);
			include("config.php");

			$sql = "SELECT tblDetails.DetailType AS type,
			GROUP_CONCAT(DISTINCT DetailName ORDER BY DetailName ASC SEPARATOR '|') AS DetailName
			FROM tblLocations INNER JOIN (tblLocDet INNER JOIN tblDetails
			ON tblLocDet.DetailID = tblDetails.DetailID) ON tblLocations.LocationID = tblLocDet.LocationID
			GROUP BY tblDetails.DetailType,tblLocations.CityID,tblLocations.AreaID,tblLocations.CuisineID
			HAVING (((tblLocations.CityID)='16')
			AND ((tblLocations.AreaID)='131')
			AND ((tblLocations.CuisineID)='3'))";
			$result = mysql_query($sql) or die(mysql_error());  

			while ($row = mysql_fetch_assoc($result)) { 
   			echo "<optgroup label='{$row['type']}'>"; 
   			$DetailNames = explode('|', $row['DetailName']); 
   			foreach($DetailNames as $DetailName) { 
    		echo "<option value='".$DetailName."'>".$DetailName."</option>"; 
   			} 
   			echo "</optgroup>"; 
			}  
			?>
    </select>
    <input type="submit" name="unused" value="Post Selections" />
</form>

<?php
include("config.php");
		if (!empty($_POST))
		{
   		$selections = ($_POST['p']);
			foreach ($selections as $key => $value)
    		{
        		$selections[$key] = trim($value);
        		if (empty($selections[$key])) unset($selections[$key]);
    				}
    				if (empty($selections)) die('No Selection');
					
			$where = 'WHERE ( ' . implode(' AND ', $selections) . ' )';
    		print_r($where);
			
			?>
			<?php
				if(!isset($selections)) 
					{
					echo("<p>You didn't select any filters!</p>\n");
					} 
				else 
					{
					$nselections = count($selections);
			
					echo("<p>$nselections filter(s) selected:<br>");
					for($i=0; $i < $nselections; $i++)
					{
					echo($selections[$i] . "<br/>");
					}
					echo("</p>");
					$DM = implode(',',$selections);
					if(!$rs=mysql_query("SELECT tblRestaurants.RestName, tblDetails.DetailName, 
					tblLocations.CityID, tblLocations.AreaID, tblLocations.CuisineID, tblLocations.RestID, 	
					CONCAT(tblLocations.StreetNumber,' ', tblLocations.Street) Address,tblRestaurants.RestPage, 
					tblLocations.StreetNumber, tblLocations.Street, tblLocations.Phone, tblLocations.Price, 	
					tblLocations.Rating
					FROM tblDetails INNER JOIN tblRestaurants INNER JOIN tblLocations ON tblRestaurants.RestID = 					tblLocations.RestID INNER JOIN tblLocDet ON tblLocations.LocationID = tblLocDet.LocationID 	
					ON tblDetails.DetailID = tblLocDet.DetailID
					WHERE tblLocations.tblCityID = '16'
					AND tblLocations.AreaID ='131'
					AND tblLocations.CuisineID = '3'
					AND tblDetails.DetailName = '$_POST('$selections')
					ORDER BY tblRestaurants.RestName;"))
	{
	echo "Cannot parse query";
	}
	elseif(mysql_num_rows($rs) == 0) {
	echo "No records found";
	}
	else {
	echo "<table id=\"myTable\" table width=\"710\" class=\"beautifuldata\" align=\"Left\" cellspacing=\"0\">\n";
	echo "<thead>\n<tr>";
	echo "<th>PLACE</th>";
	echo "<th>ADDRESS</th>";
	echo "<th>PHONE</th>";
	echo "<th>PRICE</th>";
	echo "<th>RATING</th>";
	echo "</tr>\n</thead>\n";
	while($row = mysql_fetch_array($rs)) {
	echo"<tr>
	<td><strong><a href='$row[RestPage]'>$row[RestName]</a></strong></td>
	<td>$row[Address]</td>
	<td>$row[Phone]</td>
	<td>$row[Price]</td>
	<td>$row[Rating]</td>
	</tr>\n";
	}
	echo "</table><br />\n";
	}

					}
			}
	?>

The results are to be based on result AND result AND result etc..... Not result OR result OR result etc... There are 42 selections and all of them can or cannot be selected. Thank you.