enterPress_jquery.js

Utilities.enterPress = function(config) {
  $(config.trigger).keydown(function(ev){
    // cross browser keyCode
    var code = (event.keyCode ? event.keyCode : event.which);
    if(code == 13) { 
      // default enterPress may submit an aspnetForm
      ev.preventDefault();
      config.func();
    }
  });
}

Utilities.enterPress({
  trigger: '#login input#Password', 
  func: function(){
    $('#Login').html('Logging in <span class="bg1"/><span class="bg2"/>').addClass('loading').click();
  }
});