9227292b25ce2fc4a36ee898691a49ab53105fab
max
  Fri Apr 3 06:35:21 2015 -0700
2nd version of external tools menu support

diff --git src/hg/hgTracks/mainMain.c src/hg/hgTracks/mainMain.c
index fb6c1b8..d5af427 100644
--- src/hg/hgTracks/mainMain.c
+++ src/hg/hgTracks/mainMain.c
@@ -32,26 +32,47 @@
 measureTime(NULL);
 setUdcCacheDir();
 browserName = hBrowserName();
 organization = "UCSC";
 
 /* Push very early error handling - this is just
  * for the benefit of the cgiVarExists, which
  * somehow can't be moved effectively into doMiddle. */
 htmlPushEarlyHandlers();
 cgiSpoof(&argc, argv);
 char * link = webTimeStampedLinkToResourceOnFirstCall("HGStyle.css",TRUE); // resource file link
 if (link)                                                                  // wrapped in html
     htmlSetStyle(link);
 
 oldVars = hashNew(10);
+
+if (cgiVarExists("hgt.redirectTool"))
+    {
+    printf("Content-type: text/html\n\n");
+
+    cart = cartForSession(hUserCookie(), NULL, NULL);
+    printf("<html><body>\n");
+    printf("<form id=\"redirForm\" method=\"POST\" action=\"http://tefor.net/crisporMax/crispor.cgi\">\n");
+    printf("<input type=\"hidden\" name=\"pos\" value=\"%s\">", cartString(cart, "position"));
+    printf("<input type=\"hidden\" name=\"org\" value=\"%s\">", cartString(cart, "db"));
+    printf("<input type=\"hidden\" name=\"pam\" value=\"NGG\">\n");
+    // a hidden submit button, see
+    // http://stackoverflow.com/questions/477691/submitting-a-form-by-pressing-enter-without-a-submit-button
+    printf("<input type=\"submit\" style=\"position: absolute; left: -9999px; width: 1px; height: 1px;\">\n");
+    printf("</form>\n");
+    // a little javascript that clicks the submit button
+    printf("<script>document.getElementById(\"redirForm\").submit();</script>\n");
+    printf("</body></html>\n");
+    }
+else
     cartHtmlShell("UCSC Genome Browser v"CGI_VERSION, doMiddle, hUserCookie(), excludeVars, oldVars);
+
 if (measureTiming)
     measureTime("Time to write and close cart");
 if (measureTiming)
     {
     fprintf(stdout, "<span class='timing'>Overall total time: %ld millis<br /></span>\n",
             clock1000() - enteredMainTime);
     }
 cgiExitTime("hgTracks", enteredMainTime);
 return 0;
 }