title: Javascript - cookies, is there a way to write a cookie for all browser at once?
body: <p>Step 1: My client from his OSX/Windows comes to my site using Google chrome , and downloads a trial key such as: <code>LICENSE.cert</code> file, which contains some unique keys: <code>xyz-zsd-cdfd-xfdfd-1212</code></p>
  
  <p>Step 2: i have a cookie written (for Step 1)</p>
  
  <pre><code>function setCookie(cname,cvalue,exdays) {
    var d = new Date();
    d.setTime(d.getTime()+(exdays*24*60*60*1000));
    var expires = "expires="+d.toGMTString();
    document.cookie = cname + "=" + cvalue + "; " + expires;
  }
  </code></pre>
  
  <p>Step 3: NEXT day or Day after, again he comes back to the same site but this time he came from Safari or Firefox or IE (not using same Google chrome)</p>
  
  <p>How do i read the cookie which was stored on his Google chrome in day 1? (is there anyway to write once for all? so that i suggest him?)</p>