gistfile1.js

{
text: "OK",
handler: function(){
	var checked = Ext.ComponentQuery.query("#window checkboxfield[checked=true]");
	var result = "";
	Ext.each( checked, function( item ){
		result += ""+
			"label:"+ item.boxLabel   +"<br />"+
			"value:"+ item.inputValue +"<br />";
	});
	Ext.get("hogeId").update( result );
	//console.log(Ext.getCmp("hogeId"));
}