Write some Software

i have json text thet need to be call to under page ( xmlhttp) - [login to view URL] all the "ct" + "st: need to be in listbox . When I choose one he needs display in accordance with the rest of the data in the DIV down like this: su: 08:00 - 12:00 ( its the "o" and the "c" data) m: 08:00 - 12:00 tu: 08:00 - 12:00 ... ph: 02-9898998 the code need to be onle javascript. To take the job has explained that the understanding of the work.