Get id of focussed control with Jquery, asp,net, html

get id of focussed control id use the jquery selector "addClass" and "removeClass" with jquery

$('#txtkeyboard').focus(function() {

$(this).addClass("focus");

$('#txtpassword').removeClass("focus");

});

$('#txtpassword').focus(function() {

$(this).addClass("focus");

$('#txtkeyboard').removeClass("focus");

});

get control id - use this code

var focused = $('.focus').attr("id");

alert(focused);