6fdfd053967b3fa7785a91136de5f42da93c7f73
larrym
  Wed Jul 25 16:24:14 2012 -0700
reset positionInput watermark when user zooms
diff --git src/hg/js/autocomplete.js src/hg/js/autocomplete.js
index 03805bf..fe2bda5 100644
--- src/hg/js/autocomplete.js
+++ src/hg/js/autocomplete.js
@@ -61,30 +61,31 @@
         else
             $('#positionInput').parents('form').append("<input type='hidden' id='hgFindMatches' name='hgFind.matches' " + "value='" + val + "'>");
     },
 
     init: function (db, assemblySupportsGeneSuggest, selectCallback, clickCallback)
     {
     // selectCallback(item): called when the user selects a new genomic position from the list
     // clickCallback(position): called when the user clicks on positionDisplay
         var lastSelected = null;    // this is the last value entered by the user via a suggestion (used to distinguish manual entry in the same field)
         var str;
         if(assemblySupportsGeneSuggest) {
             str = "enter position, gene symbol or search terms";
         } else {
             str = "enter position or search terms";
         }
+        $('#positionInput').val("");
         $('#positionInput').Watermark(str, '#686868');
         if(assemblySupportsGeneSuggest) {
             $('#positionInput').autocomplete({
                 delay: 500,
                 minLength: 2,
                 source: this.ajaxGet(db),
                 open: function(event, ui) {
                     var pos = $(this).offset().top + $(this).height();
                     if (!isNaN(pos)) {
                         var maxHeight = $(window).height() - pos - 30;  // take off a little more because IE needs it
                         var auto = $('.ui-autocomplete');
                         var curHeight = $(auto).children().length * 21;
                         if (curHeight > maxHeight)
                             $(auto).css({maxHeight: maxHeight+'px', overflow:'scroll'});
                         else