Website Form Fixing very Urgent for $30

Here is shortly again what i need The page has 5 different room types ... but all of them must have almost the same formular to book them for the development we just use one room "iSanook 2 Bedroom Suite" pblic link: [login to view URL] what i need first: if a user choose 3 or more adults the price per Night for each more adult must be increase by 600 PER NIGHT or 800 PER NIGHT (if choosen with breakfast) example book the room with 1 adult from 22 to 23 january = 1 Night = 4000 2 adults also have no up-price if choose 3 adult .. the 3rd adult must pay for extra bed from 22 - 23 the price will be 600 without breakfast and 800 with breakfast total = 4600 if the guests stay 2 nights the price must be 9200 (4000*2)+(600*2) the form has already sum fields one is called "Number of Days" which is filled by ajax after the user choose the dates (field ID: 25) the other one is the pulldown "How many Guests" (id 32) all i need is you to put in the logic. this is part one of the problem the other thing is about the airport transfer .. but we can do this later VERY important .. this must be done really fast .. prefered in the next few hours My budget is $[login to view URL] you will complete all and let check my site then i will award you with give you feedback good Rating with 5 star. Please please apply for budget. Thanks Shahin