element has no properties
getElementChildren(null)SpryCollapsiblePa... (line 315)
getTab()SpryCollapsiblePa... (line 299)
attachBehaviors()SpryCollapsiblePa... (line 277)
CollapsiblePanel("CollapsiblePanel5", Object contentIsOpen=false)SpryCollapsiblePa... (line 40)
[Break on this error] var child = element.firstChild;