Explode/Implode Problem

[JCScoobyRS]

Here is my code:

function highlight_code ($langName, $codeText)
    {
        $langName = strtolower($langName);
        switch ($langName)
        {
            case "vb":
            $kwarray = array("Private","Sub","End");
            //Break up the code into an array of lines......
            $codeLines = explode("\n",$codeText);

        //Loop through each line of the code
        for($i=0;$i<Count($codeLines);$i++)
        {
            $currLine = $codeLines[$cntLine];
            $codeWords = explode(" ",$currLine);
	       for($l;$l<Count($codeWords);$l++)
	       {
                $codeWords[$l] = str_replace($kwarray,"<font color='#000080'>".$codeWords[$l]." </font>",$codeWords[$i]);
            }
            $currLine = implode(" ",$codeWords);
        }
        $codeText = implode("\n",$codeLines);
        return $codeText;
    }
    //return 'This is '.$langName.' code:';
}

What I'm trying to do is take a textbox, break it into lines, loop through each line and then loop through each word to check to see if it's in the kwarray and color it if it is. I then implode the line, implode textbox and return but I keep getting a blank screen. Anyone see where my problem is? Thanks, Jeremy

[JCScoobyRS]

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