$('.editRow').live('click', function() {
	var row = $(this).parent('td').parent('tr');
	row.find('.1u').slideUp('fast');
	row.find('.1p').slideUp('fast');
	row.find('.inputTxt').slideDown('fast');
	$(this).parent('td').empty().append('<a href=# class=cancel>Cancel</a> / <a href=# class=save>Save</a>');
});

$('.cancel').live('click', function () {
	var row = $(this).parent('td').parent('tr');
	row.find('.1u').slideDown('fast');
	row.find('.1p').slideDown('fast');
	row.find('.inputTxt').slideUp('fast');
	$(this).parent('td').empty().append('<a href=# class=editRow>Edit</a>');
});

$('.save').live('click', function () {
	var thisParam = $(this);
	var row = $(this).parent('td').parent('tr');
	var id = row.attr('id');
	var userid = row.find('#1ui').val();
	var pass = row.find('#1pi').val();

	$.ajax({
	type: 'post',
	url: 'filefetch_update.php',
	data: 'action=updateUser&pass=' + pass + '&id=' + id + '&userid=' + userid,

	success: function(response) {
		$('#response').fadeOut('500').empty().fadeIn('500').append(response);
		var row = thisParam.parent('td').parent('tr');
		row.find('.1u').text(userid).slideDown('fast');
		row.find('.1p').text(pass).slideDown('fast');
		row.find('.inputTxt').slideUp('fast');
		thisParam.parent('td').empty().append('<a href=# class=editRow>Edit</a>');
	}
	});
});

$(document).keypress(function(e) {
    if (e.which == 13) {
	    $('.save').click();
    }
)};

<input type="text" onkeypress="return runScript(event)" />
 function runScript(e) {
    if (e.keyCode == 13) {
    	// do some thing like
            $('.save').click();
      }
}

$('.your-text-field').live('keypress', func)