// function for writing the cookie.
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; return;
}