Hi ,My HTML source contains custom tags with a namespace prefix, e.g <xsl:value-of select=”….” />.I have added xsl:value-of[disable-output-escaping<yes?no|select] to the extended_valid_elements. In IE the prefix is stripped and ends up with <value-of select=”….” />. It works in Firefox but places an end tag. e.g <xsl:value-of select=”….” /> Hello World! is changed to <xsl:value-of select=”….”>Hello World!</xsl:value-of>.Attached is my tiny_mce_src.js. Any suggestions to fix this? Thanks.TeamSite 6.7.1 SP 1 on windows 2003Thanks and RegardsKalai