jQuery(document).ready(function() { 
	
	pdfLinks().addClass("pdf-link").attr({ target: "_blank", title: "PDF opens in a new window" });
	docLinks().addClass("doc-link");
	externalLinks().addClass("external-link").attr({ title: "Link to an external site" });
}); 
 
 

function externalLinks() {
	return jQuery('a[href^=http]:not("[href^=http://www.gettoknowapark.org]"):not("[href^=http://gettoknowapark.org]"):not(":has(\'img\')")');
}

function pdfLinks() {
  return jQuery('a[href*=.pdf]');
}

function docLinks() {
  return jQuery('a[href*=.doc]');
}