Display an array item only once?

Hi All,

I've created an XML file (Sample below).

Code:

---

<faq>
    <category>Notifications</category>
    <faqno>1.1</faqno>
    <question><![CDATA[Question 1.1]]></question>
    <response><![CDATA[Response 1.1]]></response>
    <revdate><01/01/06></revdate>
</faq>

---

I've loaded it into my flash movie and created an array.
I use the following code to display the array results in a dynamic text box (list). This all works, after a lot of work and much to my amazement.

Code:

---

list = "";
for (i=0; i<faqs.length; i++) {
  list += "<br><br><b>" + faqs[i].category + "<br><br>" + faqs[i].faqno + "  " + faqs[i].question + "</b><br>" + faqs[i].response + "<br><p align='right'><font size='11px'>  Last Revision: " + faqs[i].revdate + "</font></p>";
}
stop();

---

Finally my question: Can I modify the display code in order to display the category only once until a new category is reached?

Thanks a bunch,
Debbie