function turnShoppingNav(target) {
    var objShop = document.getElementById("shop-box").style;
    var objItem = document.getElementById("item-box").style;
    if (target == "item") {
        objShop.display = "none";
        objShop.visibility = "hidden";
        objItem.display = "";
        objItem.visibility = "visible";
        document.getElementById("shop-tab").src = "/img/10/shopping/tab-shop-off.gif";
        document.getElementById("item-tab").src = "/img/10/shopping/tab-item-on.gif";
    } else {
        objShop.display = "";
        objShop.visibility = "visible";
        objItem.display = "none";
        objItem.visibility = "hidden";
        document.getElementById("shop-tab").src = "/img/10/shopping/tab-shop-on.gif";
        document.getElementById("item-tab").src = "/img/10/shopping/tab-item-off.gif";
    }
}

function getCookie(key) {
    key = key + "=";
    var value = "";
    var cookies = document.cookie + ";";
    var start = cookies.indexOf(key);
    if (start != -1) {
        var end = cookies.indexOf(";", start);
        value = unescape(cookies.substring(start + key.length, end));
    }
    return value;
}

function setSearchCookie(target) {
    document.cookie = "shopping_nav=" + escape(target);
    turnShoppingNav(target);
}

function getSearchCookie() {
    var c = getCookie("shopping_nav");
    if (c != "" && c != null) {
    	turnShoppingNav(c);
    }
}