title: Show google map marker depending on what zoomlevel you're on
body: <p>I'm wondering if it's possible to set markers to be visible in a chosen zoom level for the<br>
  Google Map API v3.<br>
  I figured it's possible in the v2 of the API using the "Marker Manager" but can't find a way for the latest API.</p>
  
  <p>Example:<br>
  Marker-1 -> (max_zoom:10, min_zoom:5) //will on be shown within zoom level 5-10<br>
  Marker-2 -> (max_zoom:15, min_zoom:10) //will on be shown within zoom level 10-15</p>
  
  <p>As I'm developing an jQuery-plugin I only want to use the original API without add-ons.</p>
  
  <p>Thanks in advance!</p>