3c16e66e6283ba8fb9b5153821101c1eaabb614e
kate
  Tue Jun 21 22:04:51 2011 -0700
Add links (just dummy for now) to preview browser in trackUI
diff --git src/hg/hgTrackUi/hgTrackUi.c src/hg/hgTrackUi/hgTrackUi.c
index ec5f826..ec66d8b 100644
--- src/hg/hgTrackUi/hgTrackUi.c
+++ src/hg/hgTrackUi/hgTrackUi.c
@@ -2841,30 +2841,34 @@
             else
                 safef(buf, sizeof(buf), "document.customTrackForm.submit();return false;");
             cgiMakeOnClickButton(buf, "Update custom track");
             }
         }
     }
 
 if (!tdbIsSuper(tdb) && !tdbIsDownloadsOnly(tdb))
     {
     // NAVLINKS - For pages w/ matrix, add Description, Subtracks and Downloads links
     if (trackDbSetting(tdb, "dimensions") || (trackDbSetting(tdb, "wgEncode") && tdbIsComposite(tdb)))
         {
         printf("\n&nbsp;&nbsp;<span id='navDown' style='float:right; display:none;'>");
         if (trackDbSetting(tdb, "wgEncode"))
             {
+            if (!hIsPreviewHost())
+                {
+                printf("<A HREF='' TITLE='Early access to new data on the Preview Browser...'>Preview</A>");
+                }
             printf("&nbsp;&nbsp;");
             makeDownloadsLink(database, tdb, trackHash);
             }
         char *downArrow = "&dArr;";
         enum browserType browser = cgiBrowser();
         if (browser == btIE || browser == btFF)
             downArrow = "&darr;";
         printf("&nbsp;&nbsp;<A HREF='#DISPLAY_SUBTRACKS' TITLE='Jump to subtracks section of page'>Subtracks%s</A>",downArrow);
         printf("&nbsp;&nbsp;<A HREF='#TRACK_HTML' TITLE='Jump to description section of page'>Description%s</A>",downArrow);
         printf("&nbsp;</span>");
         }
     }
 if (!tdbIsSuperTrack(tdb) && !tdbIsComposite(tdb))
     puts("<BR>");