document.getElementById(...).html is not a function

[bravo14]

I am trying to populate a textarea with the text up to the first <br> tag in a html editor using the code below.

 

 

<script>
function setIntro_en() {
    var title = document.getElementById('mtxStory_en').html();
    alert (title);
    var title = title.split('<br>')[0];
    alert(title);
        <!--document.getElementById('mtxIntro_en').value = title; -->
}
</script>

 

I am getting an error saying 'document.getElementById(...).html is not a function'

 

 

[requinix]

That'd be because it does not exist. There is no function "html" on DOM elements.

[bravo14]

Changed it to jQuery using the following

 

<script type="text/javascript">
$(document).ready(
function() {
             $('#mtxStory_en').blur(function(){

        var what = $(this).html();
        alert (what);
        $('#mtxIntro_en').html(what);


});
});
</script>

 

but the textarea with the id mtxIntro_en doesn't populate and I don't get any errors displayed in firebug.

[requinix]

What's the HTML? Particularly to do with the textareas.

[bravo14]

 

<script type="text/javascript">
            $(document).ready(
              function() {
              $('#mtxStory_en').blur(function(){

        var intro = $("#mtxStory_en").html().split("<br>")[0];
        alert (intro);
        $('#mtxIntro_en').html(intro);


});
});
</script>

 

the html for the textareas

 

<table>
<tr> 
<td width="150" class="label">Headline</td>
<td class="content"> <input name="txtHeadline_en" onBlur="setIdentifier_en();" type="text" class="box" id="txtHeadline_en" size="50" maxlength="100"></td>
</tr>
<tr> 
<td width="150" class="label">Story</td>
<td class="content"> <textarea name="mtxStory_en" cols="200" rows="90" class="editor" id="mtxStory_en"></textarea></td>
</tr>
<tr> 
<td width="150" class="label">Identifier</td>
<td class="content"><input name="txtIdentifier_en" type="text" id="txtIdentifier_en" class="box"> </td>
</tr>
<tr> 
<td width="150" class="label">Introduction</td>
<td class="content"><textarea name="mtxIntro_en" cols="70" rows="4" class="box" id="mtxIntro_en"></textarea></td>
</tr>
</table>

[CroNiX]

Those are form elements, you want to get and set their val(), not their html().

[bravo14]

Is that even if the textarea contains html from a html editor?

Edited January 9, 2015 by bravo14

[CroNiX]

Yes, it's whatever the VALUE of the form control is, regardless of the content type. As far as a form is concerned, it's all just text.

[bravo14]

Unfortunately that still hasn't worked, would it have anything to do with the fact that the html editor gets put inside an iframe?

[CroNiX]

It very well could. Not sure...I never use iFrames.  Too much of a bother.  Is the iFrame content coming from your site (same site), or a remote site? If it's a remote site, it's subject to the Same Origin Policy. http://en.wikipedia.org/wiki/Same-origin_policy

[bravo14]

The I frame gets generated by the html editor (elrte)

Edited January 9, 2015 by bravo14

[CroNiX]

You should google for "jquery selector iframe". Basically you'll have to give your iframe an ID (it may already have it), and use that to access the contents() of the iframe, and then you can grab whatever elements are in the body of the iframe.

[CroNiX]

It's not as straightforward or simple as normal, because an iFrame can be compared to a "different web page" and not a part of the main page you are viewing. It's almost like having 2 tabs open in the browser. There are extra steps needed to access the iframed content.