twinkling lamp

[OiRodgar]

Hello! I got a problem. I'm trying to script a twinkling lamp. But somehow it doesn't work.

PHP Code:

// NPC made by OiRodgar
//#CLIENTSIDE
function onCreated() {
showimg(200,"light4.png",x-3.1,y-3);
changeimgcolors(200,1,0.5,0.1,0.5);
changeimgzoom(200,2);
changeimgvis(200,3);
setTimer=(0.1);
}

function onTimeout() {
changeimgcolors(200,1,.5,.1,random(.5,.4));
setTimer=(0.1);
} 


The timeout should change the colour of the light.