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array in javascript

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Jun 28.2007

Hi all,

I have an array named numbers declared as global and set in a function. I would like to use that array in a javascript to put a number into an <input…
field.

I can’t figure out how to reference that array in the javascript. Is there a way?

<script language=”javascript” type=”text/javascript”>
function shownumber(sel)
{
alert(“in shownumber, sel=”+sel);
alert(document.My_form.$numbers[sel].value);
document.My_form.numbers.value=document.My_form.$numbers[sel].value;
}
</script>

Error Console:
Error: document.My_form.$numbers has no properties

TIA,
DD

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JavaScript

6 Comments(s) ↴

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@Banana_AnandaJun 28.2007 — I have an array named numbers declared as global [/QUOTE]

[CODE]document.My_form.numbers.value[/CODE]

Then why are you treating it like a form control ?
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@DickDeedsauthorJun 28.2007 — Let me change the question from "I can't figure out how to reference that array in the javascript. Is there a way?"

to

"How can I reference the array in javascript or does javascript not allow it?"

DD
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@Banana_AnandaJun 28.2007 — I'm confused, because I can't see an array anywhere. Are you sure that we don't have some problem with terminology. Do you mean "select box" perhaps ?

Would it be possible to post a more complete sample, stripped down, but including the relevant HTML ?
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@DickDeedsauthorJun 28.2007 — Thanks for the reply. Here's the relavent code:

This is in php portion

$sel is a number;

$numbers=array();

//// start the HTML

<form onsubmit="return checkform(this);" name="my_form" action="index.php?' . strip_tags (SID) . '&t=Church:Collection" method="post">


………………

<!-- INPUT TOTAL AMOUNT - MUST HAVE AN AMOUNT IN ORDER TO SUBMIT -->

………….

<td class=back2>

input type="text" id="amount" name="amount" onfocus="shownumber($sel)"; onblur="checkinput()"; value='.$amount.'>

</td>

<td class=back2>

<input type="text" id="number" disabled name="number" value='.$number.'>

</td>

</form>

///// end of HTML

…………..

<script language="javascript" type="text/javascript">

function shownumber(sel)

{

alert("in shownumber, sel="+sel);

alert(document.my_form.$numbers[sel]);

}

</script>

Hope this helps. I'm new to javascript, obviously, and could not find any solution in my manuals.

sel is the postion in the array that I'm trying to display.

TIA,

DD
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@Banana_AnandaJun 28.2007 — No can do. The array is a PHP array on the server. The client-side script has no awareness of its existence, if indeed it does still exist. You will have to serialize the PHP array into Javascript.
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@DickDeedsauthorJun 28.2007 — Thanks again. How does one go about serializing a PHP array into javascript?

DD
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