textObj.insertData(offset, data);

where:

• offset is a long integer value indicating the offset, in characters, from the beginning of the string, where to insert the new string.
• data is the string to insert.

Let's create a text node at the document level. We put the following line in the header of this tip:

txtObj = document.createTextNode("Doc JavaScript Columns");

and then let's insert "BiWeekly " at offset 15. Click this button to make it happen in Netscape 7. Clicking in Internet Explorer 6 will also work.

<FORM>
<INPUT TYPE="button" VALUE="Insert a String" onClick="javascript:handleClick()">
</FORM>

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