>>6 /* half up */ var focus = document.commandDispatcher.focusedWindow; if (!focus || focus == window) var w = window._content; else var w = focus; w.scrollBy(0, -w.innerHeight/2);
/* half down*/ var focus = document.commandDispatcher.focusedWindow; if (!focus || focus == window) var w = window._content; else var w = focus; w.scrollBy(0, w.innerHeight/2);