title: Disable Checkbox by comparing dates
body: <p>I am working on a project and need some help. I want to do something like this
  All the checkbox are having same class and their data is extracted from database.
  If i check checkbox 1 then checkbox 2 should get disabled as date of checkbox2 is lying in the duration of dates of checkbox 1. Simillarly when checkbox 2 is checked then checbox1 and checkbox 3 should get disabled because of dates. This will happen with a large number of checkboxes.</p>
  
  <ol>
  <li><p>This is checkbox 1 (2015-03-02 to 2015-03-09)</p></li>
  <li><p>This is checkbox 2(2015-03-05 to 2015-03-15)</p></li>
  <li><p>This is checkbox 3(2015-03-13 to 2015-03-19)</p></li>
  </ol>