In most browsers the fb:profile-pic tag is replaced in parseDom by an img tag with the class of fb_profile_pic_rendered. In Safari on Mac I'm getting the image but the class="". That makes it impossible to reference the image using getElementsByClassName and determine the src of the user thumbnail.

I switched the code to
statusImageSrc=document.getElementById("statusDiv").getElementsByTagName("img")[0].src;
and it works every time.

Silly mistake, checking the nodeValue for null, obviously can't happen because it doesn't exist:

if(currentResult.getElementsByTagName("town").item(0).firstChild == null)

Works, Rather than

if(currentResult.getElementsByTagName("town").item(0).firstChild.nodeValue == null)

Thanks anyway, lol

Regarding #7:

I'm having an issue, i'm storing values from an xml file in a javascript variable. Like:


currentResult.getElementsByTagName("town").item(0).firstChild.nodeValue


I'm doing this using Ajax, my XML results are created on the fly from the database via a super class. Everything is working fine except where a field in my database contains a null value. FF error console says:


currentResult.getElementsByTagName("town").item(0).firstChild is null


I've only just started getting into this Ajax thing, and use Javascript very rarely. I've tried to handle the null value like so:


if(currentResult.getElementsByTagName("town").item(0).firstChild.nodeValue == null)
{

}


But I still get the javascript error presumably on the conditional statement. It's hard to track the location as I have several PHP, and Javascript files included.

Any ideas on handling the Null value?

Cheers

Craig

I actually touch on the differences between nodeLists and arrays several times on the site, most recently in this post on getElementsByClassName

getElementsByTagName doesn't return an array. It's an "array-like" collection of HTML elements. If you do this:

alert(document.getElementsByTagName('p'));

in Mozilla, you will be told "[object HTMLCollection]" since that is what it is. In more friendly-speak, it's known as a node list, but it is NOT an array. For example, the Array object's concat method won't work on it because it isn't an array. However, you can loop through it and it has a length property, which is why it is often confused with an array.

Do you have any idea about handling null values which are passed to getElementsByTagName().

For example

var obj = xmlDoc.getElementsByTagName("x")[0];

var objerrorcode = obj.getElementsByTagName("y")[0];

where in xml , x is the parent of y. and y has some childNodes. if the complete tag ( somestuff ) itself is not passed , how can you handle this when y has some childNodes which have to be accessed ?

xml_document.getElementsByTagName("city") [0].id;

or

xml_document.getElementsByTagName("city") [0].getAttribute("id");

i put the id property to identify the contract,
when i handle the response i get the inner text 'Test Contract' with no problem, but how can i access the 'id' property?

thanks,
orlando