I have created a new page layout from my custom content type and custom site columns.
Then i added an OOB site column "Page Content" within this custom content type and placed this site column just under my custom RICHHTML column.
OOB "PAge Content" column works perfectly.NO JS Error,but my custom column still gives the same js error.
I have crosscheked schema xml of both site columns and both seems same.
Strange thing is that this custom site column works in "Edit Properties" of page list item.
24A2F}" Name="POCPageContent" StaticName="POCPageContent
" Group="Agilent POC(WSS IT)" DisplayName="POC Page Content" Type="HTML" Required="FALSE" Sealed="TRUE" RichText="TRUE" RichTextMode="FullHtml" ColName="ntext6" RowOrdinal="0" />