[Event handler will not detect points/series]

I am trying to link websites into pieces of a pie chart using the event handlers for points. Below is a sample of the code i am using. When I am running a tests on the values of the points, I get undefined values.
 

function loadChart()

 {

alert("loadChart function started");

chart1 = new cfx.Chart();

chart1.setGallery(cfx.Gallery.Pie);

var getData = chart1.getData();

getData.setSeries(1);

getData.setPoints(4);

chart1.getView3D().setEnabled(true);

chart1.getAllSeries().getPointLabels().setFormat("%v");

chart1.getAllSeries().getPointLabels().setVisible(true);

chart1.getAllSeries().getPointLabels().setAlignment(cfx.StringAlignment.NEAR);

 

var pie = chart1.getGalleryAttributes();

pie.setExplodingMode(cfx.ExplodingMode.All);

var data1 = <?echo $data;?>;

chart1.setDataSource(data1);

 

var someVar = document.getElementById('ChartDiv1')

chart1.create(someVar);

someVar.onclick = doClick;

alert("Chart1 created");

function doClick(evt) {

alert('You clicked something');

var iPoint = 0;

var iSeries = 0;

if ((evt.hitType == cfx.HitType.Point)  || (evt.hitType == cfx.HitType.Between))  {

iPoint = evt.point;

iSeries = evt.series;

alert('iPoint = ' + iPoint);

if (iPoint == 0) {

website = "http://www.yahoo.com";

}

else if (iPoint == 1) {

website = "http://www.msn.com";

}

else if (iPoint == 2) {

website = "http://www.google.com";

}

else if (iPoint == 3) {

website = "http://www.apple.com";

}

else if (iPoint == 4) {

website = "http://www.microsoft.com";

}

openWebSite(website);

}

else

{

alert("points did not work");

}

 

}

 

function openWebSite(website)

 {

window.open(website);

 }