Try the following code:
// get the cute editor instance
var editor1 = document.getElementById('<%= Editor1.ClientID%>');
// get the active editor document
var editdoc = editor1.GetDocument();
editdoc.open("text/html","replace")
editdoc.write(h);
editdoc.close();
asp.net Chat http://cutesoft.net/ASP.NET+Chat/default.aspx
Web Messenger: http://cutesoft.net/Web-Messenger/default.aspx
asp.net wysiwyg editor: http://cutesoft.net/ASP.NET+WYSIWYG+Editor/default.aspx
asp wysiwyg html editor: http://cutesoft.net/ASP
asp.net Image Gallery: http://cutesoft.net/ASP.NET+Image+Gallery/default.aspx
Live Support: http://cutesoft.net/live-support/default.aspx