How to add text from XML and display on the toolbar

[Webmaster]

I will to add some text which is in a .xml file this text is update every second and i want to display that text now how can i do that. So how can i display the text on my toolbar ?

[Admin]

You can write some script (php/asp/etc.) that will get text from this
xml file and generate "include_xml" for your toolbar with text you
need. But you can update your include_xml not less then every minute.