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;
}

function getCookie(name) 
{  
    var dc = 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;  
    
    var end = document.cookie.indexOf(";", begin);  
    if (end == -1)    end = dc.length;  
    
    return unescape(dc.substring(begin + prefix.length, end));
}


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";}
}