Toggle rikaichan with FireGestures

firegesture_rikaichan.js

/*
* Send the keystroke for toggling
* Rikaichan
*/
var event = document.createEvent("KeyboardEvent");

event.initKeyEvent(
	"keypress", //Key code
	true,             //  in boolean canBubbleArg,
	true,             //  in boolean cancelableArg,
	null,             //  in nsIDOMAbstractView viewArg,  Specifies UIEvent.view. This value may be null.
	false,            //  in boolean ctrlKeyArg,
	true,            //  in boolean altKeyArg,
	false,            //  in boolean shiftKeyArg,
	false,            //  in boolean metaKeyArg,
	event.DOM_VK_INSERT,               //  in unsigned long keyCodeArg, (Insert key)
	event.DOM_VK_INSERT              //  in unsigned long charCodeArg);
);
document.documentElement.dispatchEvent(event);