Bruce,
In addition to the error message shown in my last post, here is the line that the error is found:
$("#Local__QCSignature").ntsignature({clearButton:1,clearIcon:"ui-icon-arrowrefresh-1-w",jQueryButton:1,clearText:"Clear",width:200,height:60,lineWidth:0});
The above is line 660 as reported by Firebug.
Chuck