It is necessary to work within these limitations because the user may request a bookmark at any time.
It is possible to create bookmarklets to aid in a number of information-gathering and debugging tasks. The example demonstrates how to display form elements in a pop up window. This only works if your bookmarks can hold a long enough URL value. It works fine in MSIE and Netscape 6.0, but not in version 4.0 of Netscape although you can paste it into the location bar and hit return for the same effect.