fix for yet another dilbert changes

plugins/af_comics/filters/af_comics_dilbert.php

@@ -6,7 +6,7 @@ class Af_Comics_Dilbert extends Af_ComicFilter {
 	}
 
 	function process(&$article) {
-		if (strpos($article["guid"], "dilbert.com") !== FALSE) {
+		if (strpos($article["link"], "dilbert.com") !== FALSE) {
 				$res = fetch_file_contents($article["link"], false, false, false,
 					 false, false, 0,
 					 "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)");
@@ -24,7 +24,7 @@ class Af_Comics_Dilbert extends Af_ComicFilter {
 				if ($doc) {
 					$xpath = new DOMXPath($doc);
 
-					$basenode = $xpath->query('//div[@class="STR_Image"]')->item(0);
+					$basenode = $xpath->query('//img[contains(@class, "img-comic")]')->item(0);
 
 					/* $entries = $xpath->query('(//img[@src])'); // we might also check for img[@class='strip'] I guess...