var myW = 1;
function getWeek() {
    var today = new Date();
    var w1 = new Date(2011, 5, 24);
    var w2 = new Date(2011, 6, 1);
    var w3 = new Date(2011, 6, 8);
    var w4 = new Date(2011, 6, 15);
    var w5 = new Date(2011, 6, 22);

    if (today > w1) {
        myW = 1;
    }
    if (today > w2) {
        myW = 2;
    }
    if (today > w3) {
        myW = 3;
    }
    if (today > w4) {
        myW = 4;
    }
    if (today > w5) {
        myW = 5;
    }
    return myW;
}