/**
* Styleswitch stylesheet switcher built on jQuery
* Under an Attribution, Share Alike License
* By Kelvin Luck ( http://www.kelvinluck.com/ )
**/

$(document).ready(function() {
    $('.styleswitch').click(function()
    {
        if (this.getAttribute("rel") === "normal") {
            resetStyles();
        } else if (this.getAttribute("rel") === "largetext") {
            switchToLargeText();
        } else if (this.getAttribute("rel") === "mediumtext") {
            switchToMediumText();
        }else {
            switchStylestyle(this.getAttribute("rel"));
        }
        return false;
    });
    var c = readCookie('style');
    if (c) switchStylestyle(c);
});

function switchToLargeText() {
    $('link').each(function(i) {
        this.disabled = true;
        //if (this.getAttribute('href') == '/css/stylsheet560.css') { this.disabled = false; }
        if (this.getAttribute('title') == 'largetext') { this.disabled = false; }
    });
    createCookie('style', 'largetext', 365);
}

function switchToMediumText() {
    $('link').each(function(i) {
        this.disabled = true;
        //if (this.getAttribute('href') == '/css/stylsheet560.css') { this.disabled = false; }
        if (this.getAttribute('title') == 'mediumtext') { this.disabled = false; }
    });
    createCookie('style', 'mediumtext', 365);
}

function resetStyles() {
    $('link').each(function(i) {
        this.disabled = false;
        if (this.getAttribute('title') == 'textonly') { this.disabled = true; }
        if (this.getAttribute('title') == 'largetext') { this.disabled = true; }
        if (this.getAttribute('title') == 'mediumtext') { this.disabled = true; }
    });
    eraseCookie('style');
}

function switchStylestyle(styleName) {
    //$('link[@rel*=style][@title]').each(function(i)
    $('link').each(function(i) {
        this.disabled = true;
        if (this.getAttribute('title') == styleName) this.disabled = false;
    });
    createCookie('style', styleName, 365);
}

// cookie functions http://www.quirksmode.org/js/cookies.html
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 var expires = "";
    document.cookie = name+"="+value+expires+"; path=/";
}
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 eraseCookie(name) {
    createCookie(name,"",-1);
}
// /cookie functions