rick,
Please change your code to:
// get the cute editor instance
var editor1 = document.getElementById('<%=Editor1.ClientID%>');
var selectedhtml = editor1.GetSelection().createRange().htmlText;
editor1.PasteHTML("**BEFORESELECTION**" + selectedhtml + "**AFTERSELECTION**");
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asp wysiwyg html editor: http://cutesoft.net/ASP
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