Comments by Dukhabandhu Sahoo (Top 4 by date)

Good solution. You can also combine the statements to display the first 2 and last row like:

$(document).ready(function(){

$("#myTable tr").hide();
$("#myTable").children('tbody').children('tr:nth-child(1), tr:nth-child(2), tr:last').show();
});

There is a similar question at http://stackoverflow.com/questions/396739/how-do-you-determine-what-technology-a-website-is-built-on

You can try Tuple (http://msdn.microsoft.com/en-us/library/system.tuple(v=vs.110).aspx) to return multiple values.