You can use a javascript, like this
<script type="text/javascript">
// img[style]').each(function(){
$el = $(this);
var style = $el.attr('style');
$el.attr('style','');
$el.parent().attr('style',style);
}); //Moves the inline styles
$("img").each(function(){
var title = this.alt;
$(this).after(''+ title +'');
}); //Adds the dynamic captions.
});
//]]>
</script>