$var = preg_replace('#\[offtop\](.*?)\[/offtop\]#si', '<div style="color:#999;margin:1px;padding:2px;border:1px dashed #999"><img src="../images/off.gif" border="0" alt="offtop"/>\1</div>', $var);
$var = preg_replace('#\[left\](.*?)\[/left\]#si', '<div style="text-align:left">\1</div>', $var);
$var = preg_replace('#\[right\](.*?)\[/right\]#si', '<div style="text-align:right">\1</div>', $var);
$var = preg_replace('#\[justify\](.*?)\[/justify\]#si', '<div style="text-align:justify">\1</div>', $var);
$var = preg_replace('#\[center\](.*?)\[/center\]#si', '<div style="text-align:center">\1</div>', $var);