Convert an existing webpage example from parse.com to fit requirements

an iOS app has been built by me that needs to communicate with a webpage through the database on parse.com. the TODO list example tutorial of [login to view URL] is what i need to be modified a bit. Basically the modifications will be: a) when a TODO item is read in the list an "accept" or "decline" message is sent back to the data base (according to the type of the TODO message). b) a signup page. If you know [login to view URL] and javascript please contact me and I will give you all the details.