Help with JavaScript and RegEx

[Migrated From Jforum.net]

Hi,

I have a hierarchical list:

I want to write some Javascript which takes an id and cascades up the list.

For example:

If 7.2.2 is selected the javascript needs to take the string '7.2.2' remove the last '.xx' and set the tickbox (7.2) to true.

It then takes '7.2' removes the same pattern and sets the tickbox (7) to true.

It needs to continue doing this until there are no more strings that match '.xx'

I have the recursive function i'm just not so good on the regEx or subString parts.

Any ideas?

Thanks,

Liam
[originally posted on jforum.net by liam]

[Migrated From Jforum.net]

Not to worry have sorted this, brain not working properly as its monday morning

:P

thanks anyway,

Liam
[originally posted on jforum.net by liam]