/*
    Intelligent alternative style switcher
    by Paul Sowden  
    http://www.alistapart.com/articles/alternate/

    improved by Michiel Hendriks <elmuerte@drunksnipers.com>

    Style switcher control:
    <select id="skinSelector" onchange="setActiveStyleSheetEx(this.value);">
        <option value="Style 1">Style 1</option>
        <option value="Style 2+Liquid">Style 2</option>
        <optgroup label="Liquid">
            <option value="Liquid">Plain</option>
            <option value="Style 1+Liquid">Style 1</option>
            <option value="Style 2+Liquid">Style 2</option>
        </optgroup>
    </select>

*/


// function to use to combine skins
// skins is a + seperated string
function setStylesheets(skins) {
    if (!skins)
        return;
    skins = skins.split("+");
    var links = document.getElementsByTagName("link");
    for (var i = 0; i < links.length; i++) {
        var lnk = links[i];
        if (lnk.getAttribute("rel").indexOf("style") == -1 || !lnk.getAttribute("title"))
            continue;
        lnk.disabled = true;
        for (var j = 0; j < skins.length; j++) {
            if (lnk.getAttribute("title") == skins[j]) {
                lnk.disabled = false;
                break;
            }
        }
    }
}

function createCookie(name, value, days, domain) {
    var expires;
    if (days) {
        var date = new Date();
        date.setTime(date.getTime()+(days*24*60*60*1000));
        expires = "; expires="+date.toGMTString();
    }
    else
        expires = "";
    domain = domain ? "; domain=" + domain : "";
    document.cookie = name + "=" + encodeURIComponent(value) + expires + domain + "; path=/";
}

function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i = 0; i < ca.length; i++) {
        var c = ca[i].replace(/^\s+|\s+$/g, "")
        if (c.indexOf(nameEQ) == 0)
            return decodeURIComponent(c.substring(nameEQ.length,c.length));
    }
    return null;
}

setStylesheets(readCookie("bu_style"));