You can carry forward the variables from one page to other using URL parameters. For example, in your case, you can append the username details to your leftnav.dsp URL in the frameset “src” and carry that information.
In your home.dsp code, change the frame tag for “leftnav.dsp” to below:
<frame name="contents" src="leftnav.dsp?username=%value username%" scrolling="no" noresize="">
After above change, you should be able to see the username in your leftnav.dsp.
#Integration-Server-and-ESB#webMethods#Flow-and-Java-services