$(document).ready(function(){
	$("a[@href^='http']").each(
		function(){
			if(this.href.indexOf(location.hostname) == -1){
				$(this).attr('target','_blank');
			}
		}
	)
	$("a[@href$='.pdf']").attr('target','_blank');
	$("a[@href$='.doc']").attr('target','_blank');
	$('a[rel="external"]').attr('target','_blank');
	$('a[rel="doc"]').attr('target','_blank');
});