<div id="tagscloud">
<span></span>
</div>
How would I do to add some text within the span like code below ?
<span>**tag cloud**</span>
Edit: actually the span has an id
<div id="tagscloud"> <span id="WebPartCaptionWPQ2"></span> </div>
You can use:
$("#tagscloud span").text("Your text here");
The same code will also work for the second case. You could also use:
$("#tagscloud #WebPartCaptionWPQ2").text("Your text here");
Careful - append() will append HTML, and you may run into cross-site-scripting problems if you use it all the time and a user makes you append('<script>alert("Hello")</script>').
Use text() to replace element content with text, or append(document.createTextNode(x)) to append a text node.
The .append() method inserts the specified content as the last child of each element in the jQuery collection (To insert it as the first child, use .prepend()).
$("#tagscloud span").append(second);
$("#tagscloud span").append(third);
$("#tagscloud span").prepend(first);