Css change icon

[Chris]

Bonjour,
je souhaite changer image dans mon visuel :

value = event.getvalue()
grp.write('32/1/37', value)

if value==1 then
 
--> Change icon CSS = icon1
 
elseif value==2 then
 
--> Change icon CSS = icon2
 
elseif value==3 then
 
--> Change icon CSS = icon3
 
elseif value==4 then
 
--> Change icon CSS = icon4
 
end 

quelqu'un peut m'aider s'il vous plait, merci

---

Sorry !
Hello,
I want to change image in my visual:
value = event.getvalue()
grp.write('32/1/37', value)

if value==1 then

--> Change icon CSS = icon1

elseif value==2 then

--> Change icon CSS = icon2

elseif value==3 then

--> Change icon CSS = icon3

elseif value==4 then

--> Change icon CSS = icon4

end
can someone please help me, thank you