Fix dropdown list for 'Room Preference' in html page

Before fix:
![screenshot_before_fix](https://cloud.githubusercontent.com/assets/6507026/2570481/7d1c6180-b8fa-11e3-9beb-a58bb27bdad5.png)
After fix:
![screenshot_after_fix](https://cloud.githubusercontent.com/assets/6507026/2570483/8476be8a-b8fa-11e3-8072-57e21489dd9a.png)