Paginator that uses all available screen/window width
on.mouse_press = function(x,y, mouse_button)
	for _,editor in ipairs(Editors) do
		editor.selection1 = {}
	end
	for i,editor in ipairs(Editors) do
		if x >= editor.left and x <= editor.right then
			Cursor_editor = editor
			edit.mouse_press(editor, x,y, mouse_button)
			break
		end
	end
end