adding link check for preview

js/interface_common.js

@@ -336,19 +336,19 @@ var postExpandFunction = function( e, postLi )
 
         $postExpandedContent.slideDown( "fast" );
         
-        if ($.Options.getShowPreviewOpt() == 'enable')
+        if ($.Options.getShowPreviewOpt() == 'enable'){
-        {
             var previewContainer=$postExpandedContent.find(".preview-container")[0];
             /* was the preview added before... */
-            if ($(previewContainer).children().length == 0)
+            if ($(previewContainer).children().length == 0) {
-            {
                 var link = originalPost.find("a[rel='nofollow']");
-                if (/(\.jpg)|(\.gif)|(\.png)|(\.jpeg)/.test(link.html().toLowerCase()))
+                /*is there any link in the post?*/
-                {
+                if (link.siblings().length > 0){
+                    if (/(\.jpg)|(\.gif)|(\.png)|(\.jpeg)/.test(link.html().toLowerCase())){
                         $(previewContainer).append($("<img src='" + link.html() + "' class='image-preview' />"));
                     }
                 }
             }
+        }
         // insert "reply_to" before
         requestRepliedBefore(originalLi);
         // insert replies to this post after