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The power of jQuery - how to disable all the input in html page


I need to implement a function about: when current user is not active, all the content should be disabled.

With jQuery, it's pretty easy ,

  1.   var active = "${active}"; 
  2.   if(active =='false' ){
  3.   $(".form-input :input").each( function(i) { 
  4.  $(this).attr('disabled', 'disabled'); 
  5.   });


comments:
line 1:  get the  user's active status
line 2:   if user is not active
line 3:    loop to get all the input elements(like text, checkbox, radio
line 4:         disable all the input if the user is not active

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