-if (!empty($border)) echo ' border="' . $border . '"';
-if (!empty($hspace)) echo ' hspace="' . $hspace . '"';
-if (!empty($vspace)) echo ' vspace="' . $vspace . '"';
+if (!empty($border) || $border === '0') echo ' border="' . $border . '"';
+if (!empty($hspace) || $hspace === '0') echo ' hspace="' . $hspace . '"';
+if (!empty($vspace) || $vspace === '0') echo ' vspace="' . $vspace . '"';