$(document).ready(function(){
        $("input").not( $(":button") ).keypress(function (evt) {
                if (evt.keyCode == 13) {
                        iname = $(this).val();
                if (iname !== 'Submit'){
                var fields = $(this).parents('form:eq(0),body').find('button, input, textarea, select');
                var index = fields.index( this );
                if ( index > -1 && ( index + 1 ) < fields.length ) {
                        fields.eq( index + 1 ).focus();
                }
                return false;
                }
                }
        });
    });