show table row if select menu equals 1

Posted on 2010-11-21
Last Modified: 2012-08-14
I have previously used the javascript code below to show / hide a table based a check box:

<script language="javascript">
      $("document").ready(function() {
            if (!$("#phone_support").attr('checked')) $(".captionRow").show();
                  if ($("#phone_support").attr('checked')) $(".captionRow").hide();
                  else $(".captionRow").show();

How do I change it so the captionRow class only shows if the value of the below select menu is 1?

<select name="ink_brand_id" id="ink_brand_id">
do {  
        <option value="<?php echo $row_rs_ink_brand['id']?>"><?php echo $row_rs_ink_brand['ink_brand']?></option>
} while ($row_rs_ink_brand = mysql_fetch_assoc($rs_ink_brand));
  $rows = mysql_num_rows($rs_ink_brand);
  if($rows > 0) {
      mysql_data_seek($rs_ink_brand, 0);
        $row_rs_ink_brand = mysql_fetch_assoc($rs_ink_brand);
Question by:petewinter
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LVL 82

Expert Comment

ID: 34184139
if( $('#ink_brand_id option:selected').attr('value')==1 )$(".captionRow").show();

Author Comment

ID: 34184404
Thanks, but it's not working for me. Can you please check:

<script language="javascript">
      $("document").ready(function() {
                  if( $('#ink_brand_id option:selected').attr('value')==1 )$(".captionRow").show();
            $('#ink_brand_id option:selected').click(function(){
                  if( $('#ink_brand_id option:selected').attr('value')!=1 )$(".captionRow").hide();
                  else $(".captionRow").show();
LVL 82

Accepted Solution

hielo earned 500 total points
ID: 34191195
my guess you want to show/hide upon change. If so, try:
<!DOCTYPE html>
  div { color:red; }
  <script src=""></script>
  <select name="ink_brand_id" id="ink_brand_id">
    <option value="0">Flowers</option>
    <option value="1" selected="selected">Shrubs</option>
    <option value="2">Trees</option>
    <option value="3">Bushes</option>
    <option value="4">Grass</option>
    <option value="5">Dirt</option>
<script language="javascript">
      $("document").ready(function() {
			if( this.selectedIndex > -1  && this.options[this.selectedIndex].value==1)
<div class="captionRow">Hi</div>

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Author Closing Comment

ID: 34200635
Perfect. Many thanks for your help!

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