JS实现Enter键跳转及控件获得焦点

//回车跳转 
jQuery(document).ready(function () { 
//$(':input:text:first').focus(); 
jQuery(':input:enabled').addClass('enterIndex'); 
// get only input tags with class data-entry 
textboxes = jQuery('.enterIndex'); 
// now we check to see which browser is being used 
if (jQuery.browser.mozilla) { 
jQuery(textboxes).bind('keypress', CheckForEnter); 
} else { 
jQuery(textboxes).bind('keydown', CheckForEnter); 
} 
}); 

function SetControlEnterEvent() { 
//$(':input:text:first').focus(); 
$(':input:enabled').addClass('enterIndex'); 
// get only input tags with class data-entry 
textboxes = $('.enterIndex'); 
// now we check to see which browser is being used 
if ($.browser.mozilla) { 
$(textboxes).bind('keypress', CheckForEnter); 
} else { 
$(textboxes).bind('keydown', CheckForEnter); 
} 
} 

function CheckForEnter(event) { 
if (event.keyCode == 13 && $(this).attr('type') != 'button' && $(this).attr('type') != 'submit' && $(this).attr('type') != 'textarea' && $(this).attr('type') != 'reset') { 
var i = $('.enterIndex').index($(this)); 
var n = $('.enterIndex').length; 
if (i < n - 1) { 
if ($(this).attr('type') != 'radio') { 
NextDOM($('.enterIndex'), i); 
} 
else { 
var last_radio = $('.enterIndex').index($('.enterIndex[type=radio][name=' + $(this).attr('name') + ']:last')); 
NextDOM($('.enterIndex'), last_radio); 
} 
} 
return false; 
} 
} 
function NextDOM(myjQueryObjects, counter) { 
if (myjQueryObjects.eq(counter + 1)[0].disabled) { 
NextDOM(myjQueryObjects, counter + 1); 
} 
else { 
myjQueryObjects.eq(counter + 1).trigger('focus'); 
} 
}