much friendlier get_theme_object

git-svn-id: file:///home/shish/svn/shimmie2/trunk@1019 7f39781d-f577-437e-ae19-be835c7a54ca

contrib/link_image/main.php

@@ -8,7 +8,7 @@ class LinkImage implements Extension {
 	var $theme;
 	
 	public function receive_event(Event $event) {
-		if(is_null($this->theme)) $this->theme = get_theme_object("link_image", "LinkImageTheme");
+		if(is_null($this->theme)) $this->theme = get_theme_object($this);
 			if(($event instanceof DisplayingImageEvent)) {
 				global $config;
 				$data_href = get_base_href();