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help getting a value from a form

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Jul 09.2009

Hi everyone, this should be quite simple for someone who’s familiar with javascripting.

I’ll explain my question:
I have a page with a piece of html in the code as following:

[CODE]<center>
<form action=”voorwerp.html” method=”get”>

<input type=”hidden” name=”vw_type” value=”650″>
<input type=”hidden” name=”type” value=”store”>
<input type=”submit” value=”Back”>
</form>
</center>[/CODE]

I need to fetch that value of 650 from the form and check if it equals a number.
So like: if ([I]correct_command_to_fetch_that_value[/I] == 650){

I hope someone can help me out fast ?
Thanks!

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JavaScript

3 Comments(s) ↴

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@PeentjeauthorJul 09.2009 — I need to add though that the name of the form is not specified...
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@roadkillJul 09.2009 — You can access the value using this identifier:

document.forms[0].elements["vw_type"].value

This works too:

document.forms[0].elements[0].value

so the code you want is:

[code=php]if(document.forms[0].elements["vw_type"].value == 650) {
do_stuff();
}[/code]
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@PeentjeauthorJul 12.2009 — Thanks a lot, exactly what I needed ?
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