how to use javascript commands in selenium ide (document.getElementById)

[chec...@abv.bg]

I have seen people asking questions
how to do this and that in selenium ide

and people replying with test code that includes javascript commands like

document.getElementById

how can I use this type of commands as well?

[David]

Why do you want/need to execute javascript from the IDE? I don't know if that's possible, but it is generally better to do that from code with Selenium RC / WebDriver. I believe document.getElementById isn't generally available to Selenium RC either, only in WebDriver.

[Tarun Kumar]

Copied from Selenium IDE Reference - 

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storeEval(script, variableName)

Generated from getEval(script)

Arguments:

• script - the JavaScript snippet to run

Returns:

the results of evaluating the snippet

Gets the result of evaluating the specified JavaScript snippet. The snippet may have multiple lines, but only the result of the last line will be returned.

Note that, by default, the snippet will run in the context of the "selenium" object itself, so this will refer to the Selenium object. Use window to refer to the window of your application, e.g. window.document.getElementById('foo')

If you need to use a locator to refer to a single element in your application page, you can use this.browserbot.findElement("id=foo") where "id=foo" is your locator.

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[chec...@abv.bg]

Can you give me a real life example, as I am not good at understanding concepts :)
@David - I do not necessarily need to use it, but yesterday I encountered a problem and I googled it and all the solutions implemented this type of commands