<script type="text/javascript">
(function ($) {
  $.getUrlParam = function (name) {
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
    var r = window.location.search.substr(1).match(reg);
    if (r != null) return unescape(r[2]); return null;
  }
})(jQuery);
$(function () {
  alert(window.location.href);
  alert($.getUrlParam('page'));
})
</script>

$(document).ready(function(){ 
 $("button").click(function(){ 
  alert($("#w3s").attr("href")); 
 }); 
});