Ajax-Html/PHP FORM

Hi guys. Thank you for stopping by. What we need is a form that acts in a HTML webpage passing along the variables to a php processing page but not before doing some form validation using either ajax or java (of your choice). Please see the attached file so you would have a good idea of what we need. We need a form that looks like that with basically 9 different variables. As you can see in the JPG it has a starting hour of a service and a ending hour for that service associated to a phone number. The for must work like this and here is where the (AJAX/JAVA) programming comes into the html form. When a customer picks a starting time from the pull down to be associated to his first phone number lets say customer picks from the time pulldown 2:00am the second pulldown must jump automatically to start at 2:15am so he can pick from there his ending time associated to the phone number he is about to input. Now since he might want different times with some time off in between them. When customer picks his ending time on the first line second line start time should be 15 minutes right after his ending time on line #1. this is to avoid mistakes the customer might make and so on until he finishes start and end time for all of them. Phone number must be validated in real time as well to know that he inputed his 10 digits nothing else. Now here is a situation he might leave the other 2 phone numbers blank with his times left as well as he might want only the service lets say from 9:00 am till 12:00 noon and to a certain phone number and nothing else. BUT if the customer chooses the start time 00:00am and ending time 23:59(11:59pm) and inputs his phone number right after that the form will not let him even try to input no second or third time from the pulldowns. As said before the form must be in html format with the real time validation of the phone number and the jumping of the pulldown made either in java or ajax(your own choice here). And then post the vars to a php processing page.