undefined is not a function. HELP!!

[suresh vv]

I get the following exception:

There was 1 error:
1) testSubmitViaScript(com.meterware.httpunit.javascript.RPTest1)java.lang.RuntimeException: TypeError: undefined is not a function. (httpunit; line 198) at com.meterware.httpunit.javascript.JavaScriptEngineFactory.associate(JavaScriptEngineFactory.java:47)

Anybody knows what causes this?

[Russell Gold]

You are probably using a JavaScript function that HttpUnit does not recognize. This error message comes from Rhino. I haven't figure out how to make it a more useful message yet.

[suresh vv]

Did some more research on this and found that Rhino fails on the following line:

document.writeln(HTMLstr);

I tried to replace writeln with write and the argument with an empty string and same thing happens.
Same error happens when I do:

document.focus()

However i am able to do

alert(document.title)

Any ideas?

TIA,

suresh

[suresh vv]

Russ,

Thanks for the feedback. Any tips on how I can identify this function and rewrite it so httpunit doesn't choke?

Suresh