/*
 * JavaScript for news.qz828.com
 * Copyright(C) 2007-2009 Sunease Corporation.
 * cnese@163.com
 * 
 * http://www.qz828.com/
 */

function setActiveStyleSheet(title) {
    var i, a, main;
    for (i = 0; (a = document.getElementsByTagName("link")[i]); i++) {
        if (a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
            a.disabled = true;
            if (a.getAttribute("title") == title) {
                a.disabled = false;
            }
        }
    }

    SetCookie("style", escape(title));
}

function GetCookieVal(offset) {
    var endstr = document.cookie.indexOf (";", offset);
    if (endstr == -1) {
        endstr = document.cookie.length;
    }
    return unescape(document.cookie.substring(offset, endstr));
}

function SetCookie(name, value) {
    var expdate = new Date();
    var argv = SetCookie.arguments;
    var argc = SetCookie.arguments.length;
    var expires = (argc > 2) ? argv[2] : null;

    var path = "/";
    var domain = (argc > 4) ? argv[4] : null;
    var secure = (argc > 5) ? argv[5] : false;
    if (expires != null) {
        expdate.setTime(expdate.getTime() + ( expires * 1000 ));
    }
    document.cookie = name + "=" + escape (value) +((expires == null) ? "" : ("; expires="+ expdate.toGMTString()))
+((path == null) ? "" : ("; path=" + path)) +((domain == null) ? "" : ("; domain=" + domain))
+((secure == true) ? "; secure" : "");
}

function DelCookie(name) {
    var exp = new Date();
    exp.setTime (exp.getTime() - 1);
    var cval = GetCookie (name);
    document.cookie = name + "=" + cval + "; expires="+ exp.toGMTString();
}

function GetCookie(name) {
    var arg = name + "=";
    var alen = arg.length;
    var clen = document.cookie.length;
    var i = 0;
    while (i < clen) {
        var j = i + alen;
        if (document.cookie.substring(i, j) == arg)
        return GetCookieVal (j);
        i = document.cookie.indexOf(" ", i) + 1;
        if (i == 0) {
            break;
        }
    }
    return null;
}

var mystyle = (GetCookie("style") != null && GetCookie("style") != "") ? GetCookie("style") : "blue";
if(mystyle != null) {
    setActiveStyleSheet(mystyle);
}