var xy = 0;
var szam = 1;
function eff(){ 
var colorxy = new Array("#0d60a7","#f06906");


xy = xy == 0 ? 1 : 0;

document.getElementById("eff").style.color = colorxy[xy];
document.getElementById("eff1").style.color = colorxy[xy];
document.getElementById("eff2").style.color = colorxy[xy];


} 
setInterval("eff()",500);