How to do this?

now i want to make a job application page,on which are some jobs’ name can applicated by the visitor, the display’s style is on the top of the page i want to show the job’s name in hypetext ,when the vistor click the job which he want to apply,the detail will be show on the beneath’s part. generally speaking.the page is divided in to parts, the above shows the job’s name,the under show only one the detail of the job.

Start coding. When you get stuck with some specific tecnical PHP problem, ask here. If it’s HTML or CSS, ask there.
If you’ve got no idea whatsoever how to create such a page, start by studying some PHP book or tutorial.
If you don’t feel like doing any of these things, hire a programmer.