fixes to components; added post component

public/src/components.js

@@ -4,17 +4,20 @@ var components = components || {};
 
 (function() {
 	components.core = {
+		'post': function(name, value) {
+			return $('[data-' + name + '="' + value + '"]');
+		},
 		'post/content': function(pid) {
-			var el = $('[data-pid="' + pid + '"]').find('[component="post/content"]');
+			var el = components.core.post('pid', pid).find('[component="post/content"]');
 			return el.length ? el : $('#content_' + pid); // deprecated after 0.7x
 		},
 		'post/header': function(pid) {
-			var el = $('[data-pid="' + pid + '"]').find('[component="post/header"]');
+			var el = components.core.post('pid', pid).find('[component="post/header"]');
 			return el.length ? el : $('#topic_title_' + pid); // deprecated after 0.7x	
 		},
-		'post/anchor': function(pid) {
+		'post/anchor': function(index) {
-			var el = $('[data-pid="' + pid + '"]').find('[component="post/anchor"]');
+			var el = components.core.post('index', index).find('[component="post/anchor"]');
-			return el.length ? el : $('#post_anchor_' + pid); // deprecated after 0.7x	
+			return el.length ? el : $('#post_anchor_' + index); // deprecated after 0.7x	
 		}
 	};