If POST is not suitable (e.g. no forms - no buttons) use GET in links
<code>
<A HREF='http://www.yourdomain.com/.../nextPage.htm?variable1=value1&variable2=value2&dbuser=jeff' TARGET='_self' TITLE='Continue'>AnchorText</A>
</code>
BTW you can use GET in forms too, this enables back buttons, bookmarking ...
If you constantly make use of GET then it might be a good idea to run the web app in a frameset, where the top frame has zero height, to hide the complex URLs and especially the variable names and values. This does not prevent from hacking, but from nosy users playing with the address bar.