jQuery button submit with enter key function -

i have button submit :

<input type="button" id="button_sign_in" class="button_sign_in" value="sign in"/> 

and have jquery submit :

$(document).ready(function()     {         $('#button_sign_in').click(function(){              console.log('login');             $.ajax             ({                 url: "login",                 type: "post",                 data: $('#login_form').serialize(),                 datatype:'json',                 success: function (data)                  {                     if (data.status=='success')                      {                         window.location='home.php';                      }                     else                      {                         $('#button_sign_in').shake(4,6,700,'#cc2222');                         $('#username').focus();                     }                 },                 error: function (e) {                     console.log('error:'+e);                 }             });         });     }); 

the problem : can't submit using enter key, user must click button sign in submit.

what want ? set enter key js function, user can choose submit using enter key or click button sign in.

thanks help.

check demo http://jsfiddle.net/yeyene/hd7zqafg/

first click on result frame (because there frames), , press enter, submit button click event fire on enter key press & on button click.

$(document).ready(function()                    {         // enter keyd         $(document).bind('keypress', function(e) {             if(e.keycode==13){                  $('#button_sign_in').trigger('click');              }         });          $('#button_sign_in').click(function(){             alert('you click submit!');              console.log('login');             $.ajax             ({                 url: "login",                 type: "post",                 data: $('#login_form').serialize(),                 datatype:'json',                 success: function (data)                  {                     if (data.status=='success')                      {                         window.location='home.php';                      }                     else                      {                         $('#button_sign_in').shake(4,6,700,'#cc2222');                         $('#username').focus();                     }                 },                 error: function (e) {                     console.log('error:'+e);                 }             });         });     });