How to Add java script methd for value Series Dynamically

I am creating Value series dynamically in beforegeneration . I have to add interactivity by calling some java script method on moue over . How can I script to achieve it. Please provide any sample lets say call alert() on mouseover on value series by script.

Thanks in Advance !!

var sdNew = SeriesDefinitionImpl.create();
//create a new series for each parameter selection
var as = AreaSeriesImpl.create();

as.setTranslucent(true);
as.getLabel().setVisible(false);
var traceList = traceTierList[i].split(":");
var seriesidentifier = "" + traceList[0]+"_"+ traceList[1];
as.setSeriesIdentifier(seriesidentifier);

//Create the query. The row value must correlate with the data set row value

var qry = QueryImpl.create("if((row[\"TierID\"] +\"_\" + row[\"TraceType\"] ) == " +"\"" + seriesidentifier +"\""+")row[\"NTierEffectiveDeltaVal\"] ; else null;")


as.getDataDefinition().add(qry)
sdNew.getSeries().add( as );
//Add the new series definition to the first y axis
yAxis1.getSeriesDefinitions().add( sdNew );