adjust interface


  
      $('#add').click(function() {
       var text = prompt('Type in a word or a sentence (max. 140 chars):');
       newBox(text);
      });
      
      $('#help').click(function() {
       $('#helptext').slideToggle("fast");
      });
      
      $('#clear').click(function() {
       var b = confirm("Do you really want to delete all objects?\nThis will not be synchronized instantly.\nIt will cause confusion!!!");
       if (b) .post(<student-wave-cattle-update.php>, {action: "delete", boxid: "all"});
      });