javascript - Show div base on onchange from dropdown option, help - Stack Overflow

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I try to show some information inside of <div> as following:

    <div id="show_details" style="'display:block;' : 'display:none;'"> SHOW me
    </div>

by choose from drop down option e.g.

         <?php if ($books == 'art') { ?>
          <option value="art" selected="selected" id="art_indicator" onchange="(this.selected) ? $('#show_details').css('display','block') : $('#show_details').css('display','none');">Art</option>
          <?php } else { ?>
          <option value="art" id="art_indicator" onchange="(this.selected) ? $('#show_details').css('display','block') : $('#show_details').css('display','none');">Art</option>
          <?php } ?>

and the full code as following,

    <tr>
      <td>Book Option</td>
      <td>
      <select name="books">
        <?php  foreach ($others as $other) { ?>
          <?php if ($other == $other['other']) { ?>
          <option value="<?php echo $other['other']; ?>" selected="selected"><?php echo $other['title']; ?></option>
          <?php } else { ?>
          <option value="<?php echo $other['other']; ?>"><?php echo $other['title']; ?></option>
          <?php } ?>
          <?php } ?>

          <?php if ($books == 'art') { ?>
          <option value="art" selected="selected" id="art_indicator" onchange="(this.selected) ? $('#show_details').css('display','block') : $('#show_details').css('display','none');">Art</option>
          <?php } else { ?>
          <option value="art" id="art_indicator" onchange="(this.selected) ? $('#show_details').css('display','block') : $('#show_details').css('display','none');">Art</option>
          <?php } ?>
        </select></td>
    </tr>
    <div id="show_details" style="'display:block;' : 'display:none;'"> SHOW me
    </div>

Is there some way to fix this?

I try to show some information inside of <div> as following:

    <div id="show_details" style="'display:block;' : 'display:none;'"> SHOW me
    </div>

by choose from drop down option e.g.

         <?php if ($books == 'art') { ?>
          <option value="art" selected="selected" id="art_indicator" onchange="(this.selected) ? $('#show_details').css('display','block') : $('#show_details').css('display','none');">Art</option>
          <?php } else { ?>
          <option value="art" id="art_indicator" onchange="(this.selected) ? $('#show_details').css('display','block') : $('#show_details').css('display','none');">Art</option>
          <?php } ?>

and the full code as following,

    <tr>
      <td>Book Option</td>
      <td>
      <select name="books">
        <?php  foreach ($others as $other) { ?>
          <?php if ($other == $other['other']) { ?>
          <option value="<?php echo $other['other']; ?>" selected="selected"><?php echo $other['title']; ?></option>
          <?php } else { ?>
          <option value="<?php echo $other['other']; ?>"><?php echo $other['title']; ?></option>
          <?php } ?>
          <?php } ?>

          <?php if ($books == 'art') { ?>
          <option value="art" selected="selected" id="art_indicator" onchange="(this.selected) ? $('#show_details').css('display','block') : $('#show_details').css('display','none');">Art</option>
          <?php } else { ?>
          <option value="art" id="art_indicator" onchange="(this.selected) ? $('#show_details').css('display','block') : $('#show_details').css('display','none');">Art</option>
          <?php } ?>
        </select></td>
    </tr>
    <div id="show_details" style="'display:block;' : 'display:none;'"> SHOW me
    </div>

Is there some way to fix this?

• javascript
• css
• html
• show
• onchange

Share Improve this question Follow edited Feb 25, 2011 at 17:46 mylesagray 8,87977 gold badges5050 silver badges7171 bronze badges asked Feb 25, 2011 at 17:28 omc11omc11 22522 gold badges55 silver badges1111 bronze badges 3

• Are you just trying to show the contents of #show_details whenever anything is selected? Or is its contents supposed to change based on what is selected? – Michael Berkowski Commented Feb 25, 2011 at 17:55
• @Michael I am trying to show content of <div> #show_details when ever <option value="art" id="art_indicator"only selected, thanks – omc11 Commented Feb 25, 2011 at 18:32
• !omc11 Got it - I updated my answer accordingly. – Michael Berkowski Commented Feb 25, 2011 at 18:36

Add a ment  | 

3 Answers 3

Sorted by: Reset to default 3

<script type="text/javascript">

function showDiv()
{
  // hide any showing
  $(".details_div").each(function(){
      $(this).css('display','none');
  });

  // our target
  var target = "#details_" + $("#test_select").val();                                                                                                                                

  // does it exist?
  if( $(target).length > 0 )
  {
    // show it
    $(target).css('display','block');
  }
}

$(document).ready(function(){

  // bind it
  $("#test_select").change(function(){
    showDiv();
  });

  // run it automagically
  showDiv();
});


</script>
<style>
.details_div
{
  display:none;
}
</style>
{/literal}

<select id="test_select">
  <option value="">- Select - </option>
  <option value="book" selected="selected">Books</option>
  <option value="movie">Movie</option>
</select>

<div id="details_book" class="details_div">BOOK DETAILS</div>
<div id="details_movie" class="details_div">MOVIE DETAILS</div>

It looks like you're using jquery so I would first suggest to remove all javascript from the html / php and put it in a separate section or file.

You can then simply do stuff like:

$("#art_indicator").change(function() {
  // do what you want to do  
});

Also, the html for #show_details seems to be wrong:

style="'display:block;' : 'display:none;'"

is no valid style declaration.

I don't think <option> registers the onchange event. What you want instead is to use its parent <select onchange=''> to define the change event.

<script type='text/javascript'>
  function selOnChange() {
    if ($('#selectList').value == "art" {
      $("#show_details").css('display', 'block');
    } else {
      $("#show_details").css('display', 'none');
    }
  }

Now you need to have a default "unselected" option. I have it here with value="-1" When the select list changes, if its value is the value of #art_indicator, the div will be shown. otherwise, the div will not be shown.

<select id='selectList' name="books" onchange="selOnChange()">
  <option value="-1">Select something</option>
  <option id="#art_indicator" value="art">Art choice...</option>
  <?php // list all your other options ?>
</select>

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