I have used the HTML5 canvas element to create a couple of patterns using circles: http://gandalf458.co.uk/canvas-circle.htm and http://gandalf458.co.uk/canvas-circle2.htm and they work fine. I then thought I would try to combine them and use onforminput so that I can select which pattern to display using radio buttons. I know this only works in Opera at the moment but my attempt http://gandalf458.co.uk/canvas-circle3.htm isn't working. Can anyone help me with whatever is missing please...

Thanks G