Display text from selected html tags
suppose i have a strings (html):
Lorem ipsum dolor sit amet, <span id="display_only">consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. </span>Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.
How can i display only the text whicj is inside the #display_only tag.... So that the result would be
consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.