Please help with XChat module

[nevets04]

import xchat
hooker = None

__module_name__ = "Away Script"
__module_version__ = '1.0'
__module_description__ = "States that your away"


def away(word, word_eol, userdata):
	chan = xchat.get_info('channel')
	xchat.command("msg " + chan + " I'm Away")
def toggle(word, word_eol, userdata):
	global a
	if word[1] == 'on':
		xchat.hook_print("Channel Msg Hilight", away)
		xchat.command("echo Loaded")
	elif word[1] == 'off':		
		xchat.unhook(a)
		hooker = None
		xchat.command("echo Unloaded")
	
	else:
		xchat.command("echo Use /a on or /a off")
	return xchat.EAT_ALL
xchat.hook_command("a", toggle)
a = xchat.hook_print("Channel Msg Hilight", away)
xchat.command("a off")

[jlm699]

What are you asking for help with?

[nevets04]

I forgot to ask my question, oops. Why is it that once I tyurn it on using /a on, I cant turn it off using /a off?