Java version checking for IE needed

Hi, Guys,
I need to check the currently used java version in IE.
I used <object> tag
<object classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93" codebase="https://java.sun.com/update/1.5.0/jinstall-1_5_0_12-windows-i586.cab#Version=1,5,0,12" width=10 height=10>
<param name="codebase" value=".">
<param name="code" value="HelpMe.class">
</param>
</object>
The expected behavior is that : if currently installed java version is less than 1.5.0.12, a popup window will show.
but for java 1.5.0_11, the popup window for download does not show up.
I also tried
<object classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93" codebase="https://java.sun.com/update/1.5.0/jinstall-1_5_0_12-windows-i586.cab#Version=1,5,0_12" width=10 height=10>
any idea?
Thanks

A slightly unrelated observation: when I use the <object> tag, IE 7 with JDK 5 shows this ActiveX warning asking me if I want to let an ActiveX control by Sun run. Since we wanted to minimize spooking out end users with security warnings, we decided to only ever use the <applet> tag which does not cause the (additional) ActiveX warning.

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