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On Tuesday 12 February 2008 10:59, Kevin Lucas wrote:
> I am struggling with DOM and dynamic form inputs if anyone can find the
> time to help.
> I have a web
> form http://www.minionsbandb.co.uk/oldsplitaddtable.html which I need to
> dynamically add rows to (three columns) the at the end add one of the
> columns.
>
> My problem is that I can't access the value on dynamic inputs in a
> loop, I can't seem to get the syntax right if I have a form table input
> value which is dynamically named as
>
> newTxt2.name="vat_low"+rowNum when I do a form eval
>
> var one = eval(document.splitfm.vat_low + rowNum.value);
>
> I don't get the rowNum bit correct I have tried "" (){}[] in many
> combinations but don't seem to be able to add together the two elements.
> In a DOM inspection the value for vat_low+rowNum starts at "vat_low3"
>
> Any pointers or refs to JavaScript are much appreciated
Theres been a bit flying about about this one so sorry if theres some
repetition here.
1) first test simple cases:
newTxt2.name="vat_low";
...
var one =eval(document.splitfm.vat_low);
....
that probably wont work so when reading try using alerts to see if objects
exist - try it on non existant/existant vars so you know how it reacts
alert(document.splitfm.vat_low);
var one = ...
This will probably show you that document.splitfm.vat_low isnt resolving so
try alert(document.forms[0]) and then alert(document.forms[0].vat_low)
eventually you may decide that
alert("vat_low" + rowNum);//to check your string forms ok
var inputID="vat_low"+rowNum;//or whatever works
newTxt2.ID=inputID;
then use:
document.getElementById(inputID);
to get at the inputs.
Tom te tom te tom
>
>
>
> --
> Regards: Kevin Lucas Post Master (Sub) Minions Shop & Tea Rooms Minions
> Liskeard Cornwall PL14 5LE www.minionsbandb.co.uk
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