jquery - Select element with same class and other class -

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consider html:

totaal:     <input type="text" class="herd_buy total" name="herd_buy_total" /><br /> per animal: <input type="text" class="herd_buy peranimal" name="herd_buy_per_animal" /><br />

if user fills in total, should calculate per animal price, , other way around.

the script should dynamic, since have more rows total/per animal properties.

so started function. figured use class, , if selected element has class total, select peranimal class. got stuck...

$(".herd_weight, .herd_buy").on('keyup', function() {     var numanimals = $("[name=herd_num_begin]").val();      if( $(this).hasclass('total') ) {         var s = $(this).attr('class');         $( "."+s+".peranimal" ).not(this).css('background-color', 'yellow');     }     else if( $(this).hasclass('peranimal') ) {         var s = $(this).attr('class');         $( "."+s+".total" ).not(this).css('background-color', 'yellow');     } });

i figured $(this).attr('class') gives me herd_buy total, makes selector .herd_buy total .peranimal... wrong.

how can select right element?

i suggest put every row separate container (if didn't yet) this

<div>     total:     <input type="text" class="herd_buy total" name="herd_buy_total" /><br />     per animal: <input type="text" class="herd_buy peranimal" name="herd_buy_per_animal" /><br /> </div> <div>     total:     <input type="text" class="herd_buy total" name="herd_buy_total" /><br />     per animal: <input type="text" class="herd_buy peranimal" name="herd_buy_per_animal" /><br /> </div>

and in case can use next script

$(document).ready(function() {     $(".herd_weight, .herd_buy").on('keyup', function() {         var numanimals = $("[name='herd_num_begin']").val();          if( $(this).is('.total') ) {             $('.peranimal', $(this).parent()).css({                 'background-color': 'yellow'             })         }         else if( $(this).is('.peranimal') ) {             $('.total', $(this).parent()).css({                 'background-color': 'yellow'             })         }     }); });

js fiddle example here


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