// RSH 2/18/12 remove bad chars
	function filename_safe($filename) {
		$temp = $filename;
 
		// Lower case
		$temp = strtolower($temp);
 
		// Replace spaces with a '_'
		$temp = str_replace(" ", "_", $temp);
 
		// Loop through string
		$result = '';
		for ($i=0; $i<strlen($temp); $i++) {
			if (preg_match('([0-9]|[a-z]|_|\.)', $temp[$i])) {
				$result = $result . $temp[$i];
			}    
		}
 
		// Return filename
		return $result;
	}

// Filename
// RSH 2/18/12 - Make the filename safe - remove spaces, etc
$file = $realpath . $prefix . self::filename_safe($files['form']['name'][$fieldName]);