<html> <body> <script language="JavaScript"> function function1(){ var myColor = dlgColor.ChooseColorDlg(); alert(myColor); } </script> <object id="dlgColor" classid="clsid:3050f819-98b5-11cf-bb82-00aa00bdce0b"> </object> <button onclick="function1();">Choose color</button> </body> </html>