Is there a way to prevent the WebPlayer from saving PlayerPrefs on Application.Quit?

I would like to put the buttons for PlayerPrefs to load and save in the WebPlayer. For this reason I need to disable the PlayerPrefs from autosave on quit. Is there a way to do that?

The matter is I need to record the user selections and collect them. I used to set the prefkeys and prefvalues once those selection are made, but looks like I have to collect them in a special array and then set the prefkeys and prefvalues from the array once the user presses the save button and save them.