浏览器调用applet应用程序，自动下载plug-in 插件的问题

<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
    width="750" height="480" align="middle"
   codebase="http://java.sun.com/products/plugin/1.3/jinstall-13-win32.cab#Version=1,3,0,0">
    <PARAM NAME="code" VALUE="PackageXXX.ClassnameXXX.class">
    <PARAM NAME="codebase" VALUE=".">
    <PARAM NAME="archive" VALUE="XXX.jar, XXX.zip">
    <PARAM NAME="imextype" VALUE= "1">
    <PARAM NAME="type" VALUE="application/x-java-applet;version=1.3">
<PARAM NAME="OperatorCode" VALUE="<%= session.getValue("sUsername") %>">
    <PARAM NAME="GroupName" VALUE= "<%= session.getValue("sResult") %>">
        No Java 2 SDK, Standard Edition v 1.3 support for APPLET!!
</OBJECT>