What is the contents of your "col0" variable?
If it's an array you should not use the "for (x in ...)" loop but a
traditional for (x = 0; x < y; x++) loop or Prototype's Array#each
If you post how you get the col0's contents setup I'm sure we can help you.
2008/5/8 Timebomb <[EMAIL PROTECTED]>:
>
> I am trying to write some code using javascript and the prototype
> library that makes sure certain divs are contained in a column div, if
> they are not they get moved there. I'm getting the error "$(w_id) has
> no properties" when I run it. Is it possible to programmatically build
> a string containing a div id then use it like I need to? I'm new to
> prototype. Thanks in advance.
>
> Here is my code snippet:
>
> var x;
> var w_id = "";
>
> //step through the first column
> for( x in col0 ) {
> w_id = 'w_' + col0[x];
>
> //if the current item is not in col0, move it there
> if( ! ($(w_id).descendantOf('col-0')) ) {
> $('col-0').insert(document.getElementById(w_id));
> }
>
> }
> >
>
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