//Adds external link, word, and pdf icons. Opens links in new window.
function showLinkIcon() {
$('a[href^=http://]').addClass('external_link').attr('target','_blank');
$('a[href$=.pdf]').addClass('pdf_file').attr('target','_blank');
$('a[href$=.doc]').addClass('doc_file').attr('target','_blank');
}