javascript - Determine Condition Using JScript -

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guys how can have maximum of 3 checkbox page?

currently,i have 6 checkbox..if tick 6 boxes...3 tables displayed on top , 3 displayed bottom.however want have 3 maximum tables appeared.

therefore,i thinking have check condition (1)if 1 check box ticked only.it notify user minimum of 2 tables must checked make comparison.-done

(2)if more 3 tables selected.it notify user not proceed , not bring tables.-need here

<!doc html> <html> <title></title> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <script src="http://code.jquery.com/jquery-1.10.2.min.js"></script> <script type="text/javascript">     $(document).ready(function(){ $('input[type="submit"]').click(function () { if($('input[name=option]:checked').length >1) {      $('.frame-wrapper').fadeout(); $('input[name=option]').each(function() {     if ($(this).prop("checked"))     {         $('.frame-wrapper').eq( $(this).index() -1 ).fadein();     }                             });   } else   {      alert("you must compare more 1 item.!!");   } });         $('input[type="compare"]').click(function () {            $('.frame-wrapper').eq( $(this).index() -1 ).fadein();         });      });  </script> <style type="text/css">     .frame-wrapper {         display: none;         float: left;         width: 32%;         margin-top: 20px;         margin-right: 1%;         background-color: #eee;     } </style> </head> <body> <b>please select option</b> <input type="checkbox" name="option" /> b <input type="checkbox" name="option" /> c <input type="checkbox" name="option" /> d <input type="checkbox" name="option" /> e <input type="checkbox" name="option" /> f <input type="checkbox" name="option" /> <input type="submit" value="compare"/> <input type="reset" name="clear" value="clear"/>  <div style="clear: both;"></div> <div id="tbla" class="frame-wrapper">     selected </div> <div id="tblb" class="frame-wrapper">     selected b </div> <div id="tblc" class="frame-wrapper">     selected c </div> <div id="tbld" class="frame-wrapper">     selected d </div> <div id="tble" class="frame-wrapper">     seleted e </div>  <div id="tblf" class="frame-wrapper">     selected f </div>  </body> </html>

add class input checkboxes (.foo example).

then can do

 $('.foo').click(function() { //every time checkbox clicked can run sum checks. //you can loop on '.foo' classes , check how many checked. //then run if statement more dirty work.   });

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