/* better event handling */
if (document.all && window.attachEvent) { // IE-Win
    window.attachEvent("onload", onPageLoad);
} else if (window.addEventListener) { // Gecko, Safari, KDE
    window.addEventListener("load", onPageLoad, true);
    window.addEventListener("unload", onPageUnload, true);
} else { // old others, like ie5-mac

}

/* modified version of a script once published in ALA http://www.alistapart.com/articles/alternate/ */

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

function setActiveStyleSheetTxt(title) {  return setActiveStyleSheetProperty(title,"classictext"); }
function setActiveStyleSheetCol(title) {  return setActiveStyleSheetProperty(title,"classiccolors"); }

function getActiveStyleSheetProperty(property)
{
    var i, a;
    for (i=0; (a = document.getElementsByTagName("link")[i]); i++) {
        if (a.getAttribute('title') != undefined)
        {
            if (a.getAttribute("rel").indexOf("style") != -1 && !a.disabled && a.getAttribute("title").indexOf(property) != -1) {
                return a.getAttribute("title");
            }
        }
    }
    return null;
}

function getActiveStyleSheetTxt() { return getActiveStyleSheetProperty("classictext"); }
function getActiveStyleSheetCol() { return getActiveStyleSheetProperty("classiccolors"); }

function getPreferredStyleSheetProperty(property)
{
    var i, a;
    for (i=0; (a = document.getElementsByTagName("link")[i]); i++) {
        if (a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("rel").indexOf("alt") == -1 && a.getAttribute("title") && a.getAttribute("title").indexOf(property)  != -1) {
            return a.getAttribute("title");
        }
    }
    return null;
}
  
function getPreferredStyleSheetTxt() { return getPreferredStyleSheetProperty("classictext"); }
function getPreferredStyleSheetCol() { return getPreferredStyleSheetProperty("classiccolors"); }


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

function readCookie(name)
{
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
    }
    return null;
}

function onPageLoad(e)
{
    var cookie = readCookie("xarayaclassic_textsize");
    var title = cookie ? cookie : getPreferredStyleSheetTxt();
    setActiveStyleSheetTxt(title);
    var cookie2 = readCookie("xarayaclassic_colscheme");
    var title2 = cookie2 ? cookie2 : getPreferredStyleSheetCol();
    setActiveStyleSheetCol(title2);
    return true;
}

function onPageUnload(e)
{
    var title = getActiveStyleSheetTxt();
    createCookie("xarayaclassic_textsize", title, 365);
    var title2 = getActiveStyleSheetCol();
    createCookie("xarayaclassic_colscheme", title2, 365);
}



/*     window.onload = function(e) { */
/*       var cookie = readCookie("xarayaclassic_textsize"); */
/*       var title = cookie ? cookie : getPreferredStyleSheetTxt(); */
/*       setActiveStyleSheetTxt(title); */
/*       var cookie2 = readCookie("xarayaclassic_colscheme"); */
/*       var title2 = cookie2 ? cookie2 : getPreferredStyleSheetCol(); */
/*       setActiveStyleSheetCol(title2); */
/*       return true; */
/*     } */

/* window.onunload = function(e) { */
/*   var title = getActiveStyleSheetTxt(); */
/*   createCookie("xarayaclassic_textsize", title, 365); */
/*   var title2 = getActiveStyleSheetCol(); */
/*   createCookie("xarayaclassic_colscheme", title2, 365); */
/* } */

/* var cookie = readCookie("xarayaclassic_textsize"); */
/* var title = cookie ? cookie : getPreferredStyleSheetTxt(); */
/* setActiveStyleSheetTxt(title); */
/* var cookie2 = readCookie("xarayaclassic_colscheme"); */
/* var title2 = cookie2 ? cookie2 : getPreferredStyleSheetCol(); */
/* setActiveStyleSheetCol(title2); */