javascript & frames problem

I have a page with 3 frames. Two of the frames are updated when a date & location are selected on the third frame.

The form in one of the updated frames contains a table. The form in the other contains a chart that is created with a java applet.

My original design used a proprietary scripting language to build everything on the server side. I am now trying to build the table and paint the chart on the client side using javascript and calls to the SetParameter method in the chart's java applet.

My problem is that the chart completes only about 10-15% of the time. It seems that when the code building the table starts, the code painting the chart stops.

I have tried using the OnLoad events of both forms and a number of code sequence changes to ensure that the table finishes before the chart code begins, but the chart still starts first in most instances.

Anyone have any ideas?