can you call a php function with Ajax?

[kbc1]

Hi all

I have been using a little bit of simple ajax to update a database with information entered via a html form. All is working well however I now need help to achieve my next step.

In brief, I have a DIV in which I build a navigation tree and each time I click an element of the tree, an iframe on the page loads the script/form associated to the clicked navigation link and the user completes the form and moves on. (I need to use an iframe so this is the way it needs to remain.)

What i need is to be able to refresh or execute my navigation tree after the user clicks a link from the tree but without refreshing the parent window (as this would send my iframe source back to the original script that is loaded when the page loads.

I thought about putting my navigation code into a function in a PHP file and calling that but I am not sure a) if this would work and b) how this would be coded.

Can anyone offer any suggestions please?

Thanks in advance.

[leatherback]

Yes, that sounds about right. What you need is a script that generates the 'inside' of the div that holds the navig tree. When a link is clicked you use AJAX to call that script. the returned value can then be used to replaced the <div>'s content with

[kbc1]

I thought so, but how do you call a php script from within AJAX?

I have only seen simple examples (im an ajax noob) where you can echo something in PHP and this becomes the 'responsText' in AJAX and then based on that you decide what to do.

Can you provide me with an example of how I update a DIV in the parent with a PHP script?

Your help will be greatly appreciated.