How to display a message for certain browsers if a cookie has not been set
<p>Hi I am running into issues with browser detection and cookies. I am wanting to have a message display to iPhone or Android users accessing my site with a "do not show me again" check box. I cant use PHP or Jquery so I have to stick with strait javascript. I need to following events to happen:</p>

<p>if Android<br>
and<br>
if Cookie has not been set display message<br>
else  do nothing</p>

<p>I am new to coding so any help would be much appreciated.</p>
