WebTerm Toolbox

[Peter Scott]

<I have no connection with the company which makes this, but I've tried it
out and it works quite nicely>

"WebTerm ToolboxTM is a revolutionary way for Windows and Macintosh users
to access critical information on the corporate Intranet through their Web
browser.  WebTerm Power Plug-ins enable interactive, browser-based access
to legacy host applications.

Use WebTerm Toolbox to:  Embed live, interactive TN3270, TN5250, or VT420
terminal emulators within your Web browser

Centrally administer all emulation, connectivity, and automation updates
from one location with no user involvement

Automate interactions in the host window, reducing or eliminating end-user
application training

WebTerm Power Plug-ins access data from hosts that support Telnet
sessions. WebTerm macro automation is always available. 

Automation can be enhanced with JavaScript on browsers that support
LiveConnect."

http://www.wpine.com/product/webterm/webterm.html