2 linked combo's in lightbox

Scheduler Javascript
#1

Hi,

I’ve got 2 combo’s in my lightbox:

  1. with all the customers
  2. with all the properties (from all customers)
{name:"custom_customer", height:23, type:"combo", options:customers, map_to:"CustomerID", image_path: "imgs/", filtering: true, script_path: "CustomersList.php", cache: true },

{name:"custom_property", height:23, type:"combo", map_to:"PropertyID", image_path: "imgs/", filtering: true, script_path: "PropertiesList.php", cache: true  },

How can i get the first combo to filter the second one? That after the customers is selected, the second combo only shows the properties of that customer (WHERE CustomerID =)

I’ve been stuck on this for a while now

Thanks in advance!