Hi, I need to put a mouse over tooltip on a radio button the code is something like this, 
                    
xtype: 'radio',
fieldLabel: '',
id:'rdBanana',
labelSeparator: '',
boxLabel: 'Banana',
name: 'Type',
inputValue: 'banana'
and this is the tooltip i got, 
        new Ext.ToolTip({
            target: 'rdBanana',
            html: 'A very simple tooltip',
            title: 'My Tip'
        });
But that will show the tooltip if i hover at the radio button, not the boxLabel.
But i need to show the tooltip when the mouse is hovered to the boxLabel instead.
Any idea on how i can achieve this ?

Thanks in advance