javascript - How to Toggle (or Scale) to reduce a DIV's vertical size (but only to 30% of initial height) -


so i've got div (a map) goes across width of page, i'd have button users can click "hide/unhide" div 3 things when clicked:

  1. scale vertical height of div 25% of original height...
  2. change div have opacity .3 faded when @ reduced height...
  3. revert normal height & opacity (1) when clicked again

here's i've got far: scales down correct vertical height

really appreciate help...

<!-- jquery stuff added in head--> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js"></script>  <!-- code --> <div id="map">     map content here </div>  <p class="hidemap">hide map</p>  <script>   $(document).ready(function() {   $("p.hidemap").click(function () {     $("#map").effect("scale", { percent: 25, direction: 'vertical' }, 500);     });     }); </script>

try this: 

var orig_height = $('#map').height();  $('.hidemap').click(function() {     if($('#map').height() == orig_height)     {         var new_height = math.floor(orig_height * .25) + 'px';         var new_opacity = '.3';     }     else     {         var new_height = orig_height + 'px';         var new_opacity = '1';     }     $('#map').animate(     {         height: new_height,         opacity: new_opacity     },1000); });

working example: http://jsfiddle.net/x4nav/


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