Fix error message insertion for 0 search results.

static/js/index.js
        -The conditional in `queryServer()` that was meant to insert an
        error message for 0 search-results had an incorrect comparison.
        Fix.

static/js/index.js

@@ -391,7 +391,7 @@ function queryServer(){
         var resultDivs = [];
         if("error" in result)
             insertErrorMessage(result["error"]);
-        else if(result["results"].length == 0 && searchResultsPage == 1)
+        else if(result["results"].length == 0 && searchResultsPage == 2)
             insertErrorMessage("No search results.");
         else
             for(var codelet = 0; codelet < result["results"].length; codelet++)