calling public functions

[Prozac]

So, in a weapon npc, i have this serverside:

PHP Code:

public function itemDesc()
{
 this.msg="This is an item description";
 return this.msg;
} 


then the player has the weapon, and I want a gui text window object called item_desc_text (necesarrily clientside) to get the text from the public function call, but all it returns is 0:

PHP Code:

item_desc_text.text=weapon-name.itemDesc(); 


so, what is the propper procedure to call a public function in a weapon, and have it return information to you/perform actions through another weapon (clientside or serverside etc)?