Untitled

function zameniBoje()
{
    if(document.getElementById("div1").style.backgroundColor=="green"){
        document.getElementById("div1").style.backgroundColor="red";
        document.getElementById("div2").style.backgroundColor="green";
    }else{
        document.getElementById("div1").style.backgroundColor="green";
        document.getElementById("div2").style.backgroundColor="red";
    }
}

function podesi(){
    var x = document.getElementById("boja").value;
    document.getElementById("txt").style.color = x;
    var y = document.getElementById("naziv").value;
    document.getElementById("txt").style.fontFamily = y;
    var z = document.getElementById("vel").value;
    document.getElementById("txt").style.fontSize = z;
}