Creative solution with XML,PHP,MYSQL

Hi everybody, I want to implement ordering something on a website without refreshing the page. Lets say i have four columns in the html table - name,age,skill and phone. All these are links - under these are the information, eg: Name Age Skill Phone Siim 23 php 051... Tony 18 html 132... Now, when i click on the name, it should order the listings by name, if I click on the age, I get the listing ordered by age and etc,etc. Generally it is easy to do it, but how to do it without refreshing the page every time I want to order by something else? It should be possible with XML; I get the data from mysql database with php, I write it into an array and ... now how could I make it function the way I just described? Could someone point me some already written code or explain me in detail how to do it? Thank you, Siim Einfeldt PS: Sorry about sending this message to so many lists, but I haven`t seen this kind of code anywhere, but at the same time I know it is possible.