I have a multi checkbox list with an onchange DHTML event which refreshes a chart. it works fine if i only select one item from the checkbox list but where i select multiple the onchange event fires multiple times... is it possible to have the onchange event only fire where a user closes the dropdown checkbox list?! So a user could tick multiple boxes and nothing happens... but then closes the dropdown and it refreshes the chart. I've tried other DHTML events to no avail.
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