Hi Guys. how to triggerClientEvent for label ? 
Server-side function; https://wiki.multitheftauto.com/wiki/GetServerName 
My Label Element Code; 
GUIEditor = { 
    button = {}, 
    window = {}, 
    edit = {} 
} 
addEventHandler("onClientResourceStart", resourceRoot, 
    function() 
        GUIEditor.window[1] = guiCreateWindow(0.35, 0.32, 0.35, 0.31, "MTA:SA Admin Announce GUI Panel", true) 
        guiWindowSetMovable(GUIEditor.window[1], false) 
        guiWindowSetSizable(GUIEditor.window[1], false) 
  
        GUIEditor.edit[1] = guiCreateEdit(0.06, 0.15, 0.87, 0.13, "", true, GUIEditor.window[1]) 
        GUIEditor.button[1] = guiCreateButton(0.21, 0.35, 0.54, 0.21, "Give Announce!", true, GUIEditor.window[1]) 
        guiSetFont(GUIEditor.button[1], "default-bold-small") 
        guiSetProperty(GUIEditor.button[1], "NormalTextColour", "FF48FE00") 
      label = guiCreateLabel(0.01, 0.31, 0.20, 0.39, "", true)          
    end 
) 
addEventHandler("onClientGUIClick",root, 
function() 
if source == GUIEditor.button[1] then 
    guiSetText(label, "[ANNOUNCE]; \n" .. guiGetText ( GUIEditor.edit[1] ) ) 
end 
end 
)