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Level 10

Hi,

Instead of having script in the click event (or what ever event) of each of the checkboxes, have a script in the fields that sums the 20 checkboxes and if this is greater than 0 (eg at least one checkbox is ticked) then show the field.

A kind of example here for suming radio buttons: http://assure.ly/uiKS6f. Another "related" example here: http://assure.ly/omsURE.

Hope that helps,

Niall