/*     COOKIES HANDLING FUNCTIONS     */

// Returns GMT string
function getExpDate (days, hours, minutes) {
    var expDate=new Date();
    if (typeof(days)=="number" && typeof(hours)=="number") {
        expDate.setDate(expDate.getDate()+parseInt(days));
        expDate.setHours(expDate.getHours()+parseInt(hours));
        expDate.setMinutes(expDate.getMinutes()+parseInt(minutes));
        return expDate.toGMTString();
    }
    return false;
}


// Gets cookie value by offset
function getCookieVal (offset) {
    var endstr=document.cookie.indexOf(";", offset);
    if (endstr==-1) {
        endstr=document.cookie.length;
    }
    return unescape(document.cookie.substring(offset, endstr));
}


// Gets cookie value by name
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 '';
}


// Sets cookie
function setCookie (name, value, expires, path, domain, secure) {
    document.cookie=name+'='+escape(value)+
                    (expires?'; expires='+expires:'')+
                    (path?'; path='+path:'')+
                    (domain?'; domain='+domain:'')+
                    (secure?'; secure':'');
    return true;
}


// Deletes cookie
function deleteCookie (name, path, domain) {
    if (getCookie(name)) {
        document.cookie=name+'='+
                        (path?'; path='+path:'')+
                        (domain?'; domain='+domain:'')+
                        '; expires=Thu, 01-Jan-70 00:00:01 GMT';
        return true;
    }
    return false;
}