dynamic javascript with php help needed

[richclever]

Hi all,

 

My javascript is not good at all so thought I would ask for your help, hope this is the right place.

 

I have an admin page which allows properties to be entered (it's a real estate site).  One of the fields they fill in has simple text box where a number is entered which relates to a category table with the category description.  I tried to convince them to use a drop down and pick from there instead but to no avail.

 

What they want now is to have the category name display as soon as the code is entered in the box.

 

I know this can be done using a mix of php and javascript but really don't know where to start on the javascript.  I presume I need to build an array from the category tables then have javascript display the category description.

 

Can any one point me in the right direction?

 

Again, sorry if this isn't the right place for this.

 

Thanks,

 

Richard

[redbullmarky]

you could use AJAX if there are quite a few categories. I couldnt point out one tutorial over another, but a quick google search on ajax and php will bring up quite a few. Also the AJAX forums here:

 

http://www.phpfreaks.com/forums/index.php/board,51.0.html

 

and the main phpfreaks site itself are also good starts.

[richclever]

Thanks for that.  Did think about Ajax so will probably go down that route.

 

Didn't see the Ajax forum before so thanks again for pointing it out.

 

Richard