function returnObjById(id) {
    if (document.getElementById)
        var returnVar = document.getElementById(id);
    else if (document.all)
        var returnVar = document.all[id];
    else if (document.layers)
        var returnVar = document.layers[id];
    return returnVar;
}

function number_check(value) {
    return (1 - (value % 2))
}

function doUnLoad() {
    //fixContentHeight('homeBodyDiv')
    var contentBlock = returnObjById("contentBlock");
    contentBlock.style.display = "none";

}
window.onload = doUnLoad;