jquery事件绑定

$('#id').bind('事件名',function(){

//

}

);

 //===========================

//判定按键

 $('#tbInput').bind('keypress', function(e) {
                var e = window.event ? window.event : e;
                if (e.keyCode == 39) {
                    alert("39");
                }
            }); 

//注意置焦

$("#myinput")[0].focus();