Fireworkx

Hi I'm using the following on server-side: Chart.AllSeries.Link.OnMouseOver = "onPointHover('%x')"; This generates javascript mouseover events, calling my onPointHover function with the value of the X-axis. Works great, but only while hovering over actual chart graphic (eg. the coloured Area or Bar regions). How can I make it fire while hovering over any part of the chart? Any help much appreciated. Thanks