// Cookie API  v1.0
// http://www.dithered.com/javascript/cookies/index.html
// maintained by Chris Nott (chris@dithered.com)


// Write a cookie value
function setCookie(name, value, expires, path, domain, secure) {
        var curCookie = name + "=" + escape(value) + ((expires) ? "; expires=" + expires.toGMTString() : "") + ((path) ? "; path=" + path : "") + ((domain) ? "; domain=" + domain : "") + ((secure) ? "; secure" : "");
        document.cookie = curCookie;
}


// Retrieve a named cookie value
function getCookie(name) {
        var dc = document.cookie;
        
        // find beginning of cookie value in document.cookie
        var prefix = name + "=";
        var begin = dc.indexOf("; " + prefix);
        if (begin == -1) {
                begin = dc.indexOf(prefix);
                if (begin != 0) return null;
        }
        else begin += 2;
        
        // find end of cookie value
        var end = document.cookie.indexOf(";", begin);
        if (end == -1) end = dc.length;
        
        // return cookie value
        return unescape(dc.substring(begin + prefix.length, end));
}


// Delete a named cookie value
function deleteCookie(name, path, domain) {
        var value = getCookie(name);
        if (value != null) document.cookie = name + "=" + ((path) ? "; path=" + path : "") + ((domain) ? "; domain=" + domain : "") + "; expires=Thu, 01-Jan-70 00:00:01 GMT";
        return value;
}


// Fix Netscape 2.x Date bug
function fixDate(date) {
        var workingDate = date;
        var base = new Date(0);
        var skew = base.getTime();
        if (skew > 0) workingDate.setTime(workingDate.getTime() - skew);
        return workingDate;
}


// Test for cookie support
function supportsCookies() {
        setCookie('checking_for_cookie_support', 'pgmusicinctesting123hello');
        if (getCookie('checking_for_cookie_support')) return true;
        else alert("If cookie support has been disabled\n in your browser, please\n enable it for the accurate\n operation of the shopping cart.");
}