if (this.value){ var preview = $(this).parent().parent().next().children('object.svg_preview'); var option = $($(this).children('option[value='+this.value+']')[0]); var src = option.attr('src'); var width = option.attr('width'); var height = option.attr('height'); preview.children().attr({'src':src, 'width':width, 'height':height}); preview.attr({'data':src, 'width':width, 'height':height}); };