Try your example in Safari... GetHTML works, but InsertHTML does not.
(Netscape 7 does not want to work either, but Safari is more important)

http://www.cutesoft.net/example/JavaScript-API.aspx
 

My page needs this function, so it would be great if you could let me know if and when this will be fixed (or if I am doing something wrong).

 

Thanks,

Aaron