<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <title>[ #516370 ] Invalid ID value?</title> <body> <h2 id="ValidID1">Test valid D</h2> <h2 id="_ValidID2">Test valid ID</h2> <h2 id=":ValidID3">Test valid ID - : should only be used for namespaces</h2> <h2 id=".InvalidID1">Test invalid ID</h2> <h2 id="2InvalidID2">Test invalid ID</h2> </body> </html>