var currslid = 0;
var slidint;
function setfoc(id) {
    document.getElementById("focpic").src = picarry[id];
    document.getElementById("fochref").href = lnkarry[id];

    currslid = id;
    for (i = 0; i < 3; i++) {
        document.getElementById("tmb" + i).className = "thubpic";
    };
    document.getElementById("tmb" + id).className = "thubpiccur";


}