diff --git a/Script-Cookbook.md b/Script-Cookbook.md
index ca5c402c..9349c44f 100644
--- a/Script-Cookbook.md
+++ b/Script-Cookbook.md
@@ -8,6 +8,7 @@
 - [Multiple IR Receiver Synchronization](#Multiple-IR-Receiver-Synchronization)
 - [Fast Polling](#Fast-Polling)
 - [Switching and Dimming By Recognizing Mains Power Frequency](#Switching-and-Dimming-By-Recognizing-Mains-Power-Frequency)
+- [WEB user io demo](#WEB-user-io-demo)
 
 [Back To Top](#top)
 
@@ -1077,4 +1078,52 @@ dim="FF55"+hn(tmp*dimmlp)+"05DC0A"
 
 [Back To Top](#top)
 
-------------------------------------------------------------------------------  
\ No newline at end of file
+------------------------------------------------------------------------------  
+
+
+#### WEB user io demo
+example to show how to implement WEB user io  
+used to control a light device via websend  
+
+\>D  
+dimmer=0  
+sw=0  
+color=""  
+col1=""  
+red=0  
+green=0  
+blue=0  
+ww=0  
+
+\>F  
+color=hn(red)+hn(green)+hn(blue)+hn(ww)  
+if color!=col1  
+then  
+col1=color  
+=>websend [192.168.178.75] color %color%  
+endif  
+
+if chg[dimmer]>0  
+then  
+=>websend [192.168.178.75] dimmer %dimmer%  
+endif  
+
+if chg[sw]>0  
+then  
+=>websend [192.168.178.75] power1 %sw%  
+endif  
+
+\>W  
+bu(sw "Light on" "Light off")  
+ck(sw "Light on/off   ")  
+sl(0 100 dimmer "0" "Dimmer" "100")  
+sl(0 255 red "0" "red" "255")  
+sl(0 255 green "0" "green" "255")  
+sl(0 255 blue "0" "blue" "255")  
+sl(0 255 ww "0" "warm white" "255")  
+tx(color "color:   ")  
+
+[Back To Top](#top)
+
+------------------------------------------------------------------------------ 
+