Output window updates even though omit from output is selected

Sorry. The title may be misleading,but I was unsure how to phrase the issue. I created a plugin to write all my cool downs to a mini window. It consists of 3 triggers, 2 aliases, and a timer. The timer ticks ever 5 secs and sends the command "cd" to activate the triggers and capture the output. It seems that when the timer tics it sends an update command to my output window. The text is omitted because the triggers are set to do so, but it does trigger my prompt to display over and over again filling up my output window. Below is my complete code.


<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE muclient>


<!-- Plugin "cool_down" generated by Plugin Wizard -->

<muclient>
<plugin
   name="cool_down"
   author="Umiak"
   id="c6dcb8a0fc4043d4a19fdcd9"
   language="Lua"
   save_state="y"
   >

</plugin>


<!--  Get our standard constants -->

<include name="constants.lua"/>

<triggers>

<!-- trigger to match start of inventory -->

  <trigger
   
   enabled="y"
   expand_variables="y"
   keep_evaluating="y"
   match="Abilities on Cool Down:"
   send_to="12"
   sequence="100"
   omit_from_output="y"
   name="cd_start"
   group="cooldown"
   script="cooldown_table"
  >
  <send>
</send>
  </trigger>

<!-- trigger to match an inventory line -->

  <trigger
   expand_variables="y"
   keep_evaluating="y"
   match="*"
   send_to="12"
   sequence="50"
   omit_from_output="y"
   name="cd_capture"
   group="cooldown"
   
  >
  <send>
  table.insert (cd_table, "%0")
  </send>
  </trigger>

<!-- trigger to match end of inventory -->
  
  <trigger
   expand_variables="y"
   keep_evaluating="y"
   match="(^&lt;)|^$"
   regexp="y"
   send_to="12"
   sequence="40"
   name="cd_stop"
   group="cooldown"
   script="cooldown_process"
  >
  <send>
  </send>
  </trigger>
    
</triggers>

<aliases>
  <alias
   script="cd_off"
   match="cdoff"
   enabled="y"
   send_to="12"
   sequence="100"
   group="CD"
  >
  <send>

</send>
  </alias>
  <alias
   script="cd_on"
   match="cdon"
   enabled="y"
   send_to="12"
   sequence="100"
   group="CD"
  >
  <send>

</send>
  </alias>
</aliases>
<timers>
    <timer 
	name="cooldown_tic" 
    enabled="n"
    second="5" 
	omit_from_output="y"
>
<send>
cd
</send>
</timer>
</timers>

<!--  Script  -->


<script>
<![CDATA[

require "wait"  -- for waiting for cool down lines
require "movewindow"  -- load the movewindow.lua module

win = GetPluginID () .. "_cooldown"
font = "f"
MIN_SIZE = 50

function cooldown_table (name, line, wildcards)

	-- Create table to capture cool downs
	cd_table = {}

	-- Enable addtional triggers
	EnableTrigger ("cd_capture", true)
	EnableTrigger ("cd_stop", true)
	EnableTimer("cooldown_tic", true)
	
end -- cooldown_table

function cooldown_process (name, line, wildcards, styles)

	-- don't need to track inventories any more
    EnableTrigger ("cd_capture", false)
	EnableTrigger ("cd_stop", false)

	
	-- in case no table yet
	cd_table = cd_table or {}

	table.sort (cd_table)
	
	local font_height = WindowFontInfo (win, font, 1)
	local max_width = WindowTextWidth (win, font, "Cool Downs!")
	local window_width = max_width + 200
	local window_height = font_height * (#cd_table + 2) + 10

	-- make window correct size

	WindowCreate (win, 
					 windowinfo.window_left, 
					 windowinfo.window_top, 
					 window_width, window_height,              -- width, height
					 windowinfo.window_mode,   
					 windowinfo.window_flags,
					 ColourNameToRGB "black") 

	WindowRectOp (win, 5, 0, 0, 0, 0, 5, 15 + 0x1000)

	-- add the drag handler so they can move the window around
	movewindow.add_drag_handler (win, 0, 0, 0, font_height)
	  
	-- heading line

	WindowText (win, font, "Cool Downs:", 5, 5, 0, 0, ColourNameToRGB  "yellow")

	-- draw each scan line

	local y = font_height * 2 + 5

	for i, value in ipairs (cd_table) do
      local x = 5 
	  x = x + WindowText (win, font, value, 5, y, 0, 0, ColourNameToRGB "lime")
	  y = y + font_height

	end -- for each inventory item

	WindowShow (win, true)	


end -- cooldown_process

function OnPluginInstall ()

  -- install the window movement handler, get back the window position
  windowinfo = movewindow.install (win, 6)  -- default to 6 (on top right)
  
  -- make window so I can grab the font info
  WindowCreate (win, 0, 0, 0, 0, 1, 0, 0)

  -- add the font                 
  WindowFont (win, font, "Lucida Console", 9)  
    
end -- OnPluginInstall

function OnPluginSaveState ()
  -- save window current location for next time  
  movewindow.save_state (win)
end -- function OnPluginSaveState

function cd_off(name, line, wildcards)
	
	-- hide window
	WindowShow (win, false)
	ColourNote ("yellow", "", "Cool down window now hidden. Type 'cdon' to see it again.")
	EnableTimer("cooldown_tic", false)
	
end -- 

function cd_on(name, line, wildcards)
	
	-- show window
	WindowShow (win, true)
	ColourNote ("yellow", "", "Cool down window now shown. Type 'cdoff' to hide it.")
	EnableTimer("cooldown_tic", true)
end --

]]>
</script>
</muclient>