gistfile1.js

  this.db.transaction(function(tx) {
      tx.executeSql("CREATE TABLE IF NOT EXISTS " + this.tableName + " (flag REAL)",[], function(tx, result) {
        tx.executeSql("SELECT flag FROM " + this.tableName, [], function(tx, result) {
          if (result.rows.length == 0) {
            tx.executeSql("INSERT INTO " + this.tableName + " (flag) VALUES (1)", [], function(tx, result) {
 
              firstTimeCallback();
 
            }, function(tx, error) {
              Mojo.Log.error("There was an error inserting into " + this.tableName + ": " + error.message);
            });
          } else {
 
            everyOtherTimeCallback();
 
          }