ExtJS4 - Ext.dom.Element and fireEvent

[JackTheStriper]

I'm starting to use ExtJS4, but need some help here...
I have this HTML code:

<input type="button" value="Click" id="sendButton">

<input type="text" id="tbox">
And this script code:

Ext.addBehaviors({
'#sendButton@click': function (){
alert("Test");
}
});


Ext.get('tbox').on('keydown', function(e){
if(e.keyCode == Ext.EventObject.ENTER){
//Ext.select('#sendButton').fireEvent('click');
//Ext.get('sendButton').fireEvent('click');
// this is what I need working....
}
});
I just want to, when you press enter on a textbox, it will act like you clicked the button.
Can anyone help?

[vietits]

Try this:

Ext.addBehaviors({
    '#sendButton@click': function (e, t){
        console.log("Test");
    },
    '#tbox@keydown': function(e, t){
        if(e.keyCode == Ext.EventObject.ENTER){
            Ext.get('sendButton').dom.click();
        }
    }
});