HELP ! [showGUI]

[FuriouZ]

Hey i have problem

How i can make that if i hit market then it opens shopgui ?

Here is code(client):

function showGUI() 
guiSetVisible(Wnd,true) 
showCursor(true) 
end 
addEvent("showGUI",true) 
addEventHandler("showGUI", getRootElement(), showGUI) 
  

And(server):

shop = createMarker( 1541.7912597656,-1697.8956298828,12.5, "cylinder", 2, 255, 255, 255, 255 ) 
  
function showGUI(hitPlayer) 
triggerClientEvent (hitPlayer,"viewGUI",getRootElement(),hitPlayer) 
end 
addEventHandler("onMarkerHit",shop,viewGUI) 
  
addEvent ("viewGUI", true) 
function showGui (hitPlayer, matchingDimension) 
    triggerClientEvent ("viewGUI", hitPlayer) 
end 
addCommandHandler("shop",showGui) 
  

thanks

[tigerman]

addEventHandler("onMarkerHit",shop,showGUI) 

server

[~Gangsta~]

client

function showGUI() 
guiSetVisible(Wnd,true) 
showCursor(true) 
end 
addEvent("showGUI",true) 
addEventHandler("showGUI",getRootElement(),showGUI) 
  
addEvent("hideGUI",true) 
addEventHandler("hideGUI",getRootElement(), 
function () 
guiSetVisible(Wnd,false) 
showCursor (false) 
end) 

server

shop = createMarker( 1541.7912597656,-1697.8956298828,12.5, "cylinder", 2, 255, 255, 255, 255 ) 
  
function showGUI(hitPlayer) 
triggerClientEvent (hitPlayer,"showGUI",getRootElement(),hitPlayer)  
end 
addEventHandler ("onMarkerHit",shop,showGUI) 
  
addEventHandler("onMarkerLeave",shop, 
function (leavePlayer) 
triggerClientEvent(leavePlayer,"hideGUI",leavePlayer) 
end)