Abstract: Situational awareness map display information is generated at a location and populated with sensor information accessed via the Internet. The map display information is made available on the Internet. A remote browser-enabled display terminal accesses the map display information via the Internet, and displays the map and sensor information. A memory associated with the remote terminal is preloaded with fade information. At the remote terminal, a location icon is generated at the cursor location under control of a mouse click. The icon is faded at the stored fade rate. The icon may be a segmented circle surrounding the marked location. Fading may be by sequentially deleting one or more segments from the circle.

Abstract: A browser invokes a program from a server. The server responds with a web page and ancillary logic. The browser displays the web page and loads the logic into memory. The ancillary logic includes a command set, a status indicator for each command type, and a set of command type governors. When a command is initiated at the browser, the appropriate governor observes the status, and deletes the command if the status is “not complete” or passes the command for transmission to the server if the status is “completed.” This prevents the transmission of repeated or redundant commands to the server.