Save focus: Temporarily saves keyboard processing data for the currently-focused control.
KeymanWeb.KSF() // Shorthand
Use this function to temporarily preserve all keyboard processing information during a single change-of-focus event.
This function is designed to allow custom UI elements, custom OSK displays (as for the EuroLatin2 keyboard), or keyboards with picker-style functionality (such as the Japanese keyboard) to operate without losing the current input state due to loss of focus for the active control.
A good example of when to call this function would be for
onmousedown events for visual elements not intended
to change the element of focus within KeymanWeb. It is safe for use outside of keyboard code.