javascript - Show/Hide using drop down list -


hello trying use code below. code want default div area 1. have html code showing div area 1 in drop down menu want javascript show div area 1 default. code?

    <script type="text/javascript">     $(document).ready(function(){         $('.box').hide();         $('#dropdown').change(function() {             $('.box').hide();             $('#div' + $('#dropdown').val()).show();         });     }); </script>  <form>     <select id="dropdown" name="dropdown">      <option value="0">choose</option>      <option value="area1" selected="selected">div area 1</option>      <option value="area2">div area 2</option>      <option value="area3">div area 3</option>     </select> </form>  <div id="divarea1" class="box">div area 1</div> <div id="divarea2" class="box">div area 2</div> <div id="divarea3" class="box">div area 3</div> 

$('.box').hide().first().show();

or:

$('.box').hide().filter("#divarea1").show();

live demo

put 1 of above in dom ready event:

$(function(){ /*...*/ });

or

$(document).ready(function(){ /* ... */ });

full code: (it should answer next question regarding how show selected div...)

$(document).ready(function() {      $('.box').hide().filter("#divarea1").show();      $('#dropdown').change(function() {         var selectedid= $(this).find(':selected').text().replace(/\s/g, "").tolowercase();         console.log(selectedid);         $('.box').hide().filter('#' + selectedid).show();     }); });​

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