$(document).ready(function()
{
  //for table row
  $('#content').find("tr:even").css("background-color", "#C8CED9");
  $('#content').find("tr:odd").css("background-color", "#DCE0E5");
});

$.extend({
  jYoutube: function( url, size ){
    if(url === null){ return ""; }

    size = (size === null) ? "big" : size;
    var vid;
    var results;

    results = url.match("[\\?&]v=([^&#]*)");

    vid = ( results === null ) ? url : results[1];

    if(size == "small"){
      return "http://img.youtube.com/vi/"+vid+"/2.jpg";
    }else {
      return "http://img.youtube.com/vi/"+vid+"/0.jpg";
    }
  }
});