Hi, I know that Geochart doesn't support "onMouseover" event. Instead, 
GeoChart shows a tooltip when users mouse over a particular region. 

What I have been doing is to replace a flash map with a GeoChart. 

You can find  the geo chart  which I am working on 
(http://www.hyalina.com--> The first map was implemented in Flash and the 
second map was implemented in GeoChart in the right side)  

What I would like to do is that when users mouse over a country, then show 
corresponding numbers in the 4 below boxes. The Flash map works well! (The 
first one)

However, I found that GeoChart doesn't support "onMouseOver" event. I tried 
to addLister  to the GeoChart like

      google.visualization.events.addListener(chart, 'onmouseover', 
function(eventData) 
        {
          // I need to get eventData.region and alert it

         alert ("selected:"+ eventData.region );  
         
        });  

It seems not to work. 

Is there any way to get the region which users mouse over? 
I guess that tooltip has the information which I want to get it. So, if I 
can reimplment the tooltip option, then I might find a way to do it.

Any idea or suggestion would be welcomed!!

Thanks in advance. : ) 


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