I've added the code
$('#search1').numberbox('textbox').bind('keydown',function(e){
if (e.keyCode == 13) {window.alert('search1');}
});
but now I get the following error in Firebug and the keydown is still not functioning.
TypeError: $.data(...) is undefined jquery.easyui.min.js (line 6517, col 7)
return $.data(jq[0],"textbox").textbox.find(".textbox-text");
------------^