External Link and ALT tags

1. Make all the external links open in new tab 

2. Make all the external links nofollow

3. Adding alt tags to all images

<script type='text/javascript'>//<![CDATA[jQuery('a').each(function(){// Let's make external links open in a new tab. var href=jQuery(this).attr('href');if (typeof href !='undefined' && href !="" && (href.indexOf('http://') !=-1 || href.indexOf('https://') !=-1) && href.indexOf(window.location.hostname)==-1){jQuery(this).attr("target", "_blank");}});//]]></script>
<script type='text/javascript'>//<![CDATA[jQuery('a').each(function(){// Let's make external links nofollow. var href=jQuery(this).attr('href');if (typeof href !='undefined' && href !="" && (href.indexOf('http://') !=-1 || href.indexOf('https://') !=-1) && href.indexOf(window.location.hostname)==-1){jQuery(this).attr("rel", "nofollow");}});//]]></script>
<script type='text/javascript'>//<![CDATA[$(document).ready(function(){$('img').each(function(){var $img=$(this);var filename=$img.attr('src') $img.attr('alt', filename.substring((filename.lastIndexOf('/'))+1, filename.lastIndexOf('.')));});});//]]></script>