display data from sqlite database in html form(phonegap)

I have one html form in which all the fields have to filled from the data in my database. I tried using a javascript file and created one document.getElementbyID but it didnt worked.

    <script type="text/javascript">
        getMultipleRows();
        function getMultipleRows()
      {
          var db = window.sqlitePlugin.openDatabase({name: "drrem.db", location: 1});
  db.transaction
  (
       function (tx)
       {
            tx.executeSql
            (
                'SELECT medicine_name FROM Medicine',
                [],
                function(tx,results)
                {
                    var len = results.rows.length;
                    if(len>0)
                    {
                        for (var i = 0; i < len; i++) 
                        {
                            var a;

                 a[i]=results.rows.item(i)['medicine_name'];
                 document.getElementById("output").value=a[i];
                        }
                    }
                }
            );
       }
   );
}
    </script>

   Here is the html code in which I want the data to be displayed :

<input type="text" name="MedicineName" id="output"/>