button to send a command

[ImojenSander]

hi, iv been trying to search for a solution to this but failed, im sure the answer is staring me in the face. I have a basic texture change script that when you click the object it changes texture lets call this object2, but, i want to click an in world object, lets call this button, to texture change object2, but i cant work out the script to tell object2 to change to next texture when button is pressed. I know object2 needs to have

llListen

script in it but i don't know how to communicate the button request to object2

any help n guidance would be appreciated

thank you 

[Rolig Loon]

You're looking at the wrong end of the process.  Pay attention to the listen event instead of the llListen function that establishes a handle for listening.  Is that enough of a hint?