rem: function SpaceHit() 
add: function SpaceHit(event) 
context: function SpaceHit(){  var contentWindow = window.top._content;  var oldScrollY = contentWindow.scrollY;  contentWindow.scrollByPages(1);  // if at the end of the message, go to the next one  if (oldScrollY == contentWindow.scrollY) {    goDoCommand('cmd_nextUnreadMsg');  }}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/137d7ccf5dea6db00b8297d3268fb14accab5538/mailWindowOverlay.js/clean/mailnews/base/resources/content/mailWindowOverlay.js