JCanvas mouseover seems to be mousemove

Question

I have a small JCanvas app that has the following layer def that sets a handler for mouseover. I put some console log statements in various places and it is clear that an event is generated every time the mouse moves in the rectangle, not just when it enters. mouseout also occurs with every mouse move.

That seems contrary to the definition of mouseover, common sense and the way jQuery works. Can anyone provide some insight into a problem of my making or if this is simply something I have to work around? Thanks in advance.

 $(page).drawRect( {
     click:function (layer) {topic_click(layer);},
     mouseover:function (layer) {handleMouseover(layer);},
     mouseout: function (layer) {handleMouseout (layer);},
     fillStyle:"#000044",
     x:x, y:y,
     width:300,
     height:60,
     cornerRadius:16,
     visible:true,
     name:"topic_"+ ct.toString(),
     layer:true
 });

Answer 1

Yeah, seems to be fixed: In the firebug/chrome console enter a

$("canvas").clearCanvas();