var subMenuWidth = "15em";
var menuElement;
function menuRoll(menuElement) {
    if (menuElement == undefined) return;
    this.menuElement = menuElement;
    menuElementIdNumber = menuElement.id.replace(/menuBlock/, "")
    for (n = 0; n < menuElement.childNodes.length; n++) {
        if (menuElement.childNodes[n].className == "cover_level1") menuFade(menuElement.childNodes[n], "0px", menuElementIdNumber);
        if (menuElement.childNodes[n].className == "cover_level2") menuFade(menuElement.childNodes[n], subMenuWidth, menuElementIdNumber);
    }
}

function menuFade(menuElement, positionVisible, menuElementIdNumber) {
    if (menuElement.style.left == positionVisible) {
        menuElement.style.left = "-5000px";
        document.getElementById("itemMarker" + menuElementIdNumber).className = "";

    } else {
        menuElement.style.left = positionVisible;
        document.getElementById("itemMarker" + menuElementIdNumber).className = "marker";

    }
}