Bind enter event code_jquery

function sendLoginData(){
loginvalidateForm ();

$(document).keydown(function(event){
if(event.keyCode == 13){ //Bind Enter
$('#login-submit ').click(); /Automatically/trigger the login button
}
});

$('#login-submit').click(function(){
if( $('#login-form').valid()==false){
return false;
}

var username = $('#id_username').val();
var password = $('#id_password').val();
$.ajax({
type:"post",
dataType:"json",
contentType:"application /x-www-form-urlencoded;charset=UTF-8",
url:"{% url netPan.User.views.LoginHd%}",
data:{
username: username,
password: password
},
beforeSend: function(){
//Prompt information to improve user experience
$('#loginInfoWord').show().text('is Processing, please wait...');
},
success:function(data){
var message = data.message;
if(message == 'D'){
//Prompt information to improve user experience
$('#loginInfoWord').show().text('Login successful, jumping...');
window.location.href = '{% url netPan.index.IndexHd%}';

}else if(message == 'C'){
$('#loginInfoWord').show().text('User Incorrect name or password');
}else if(message == 'N'){
$('#loginInfoWord').show().text('You have not registered yet! ');
}else if(message == 'H'){
$('#loginInfoWord').show().text('You have not activated your account yet, please log in to your email to activate your account!' );
}
},
error: function(xhr,textStatus,errorThrown){
$('#loginInfoWord').show().text('Exception occurred:' errorThrown);
}

});

});

/* It can be placed above or below, the order has nothing to do with it

$(document) .keydown(function(event){
if(event.keyCode == 13){ //Bind Enter
$('#login-submit').click(); /Automatically/trigger the login button
}
});

*/
}