title: how to remove class of a div without knowning id of div?
body: <p>Hi i have a dynamic generated div's list with unique id's for every generated div's, </p>
  
  <p>when click on one of the dynamic generated div this will change the selected div background color by this code <code>$(this).addClass('add_color');</code> if again i click on another one div then the older selected div background color should change to default so i tried  this code <code>$(".add_color").removeClass(".add_color");</code> but it's not working, please help.</p>