function getIframeParam( name )
{
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec(window.location.href.replace(/%26/g,"&").replace(/%3D/g,"=").replace(/%3F/g,"?"));
  if( results == null )
    return "";
  else
    return results[1];
}

$(document).ready(function(){
        var tab_param = getIframeParam('tab');
        if (tab_param == '2')
        {
               $('#tab_option1').hide();
               $('#tab_option2').show();
               $('#tab_option3').hide();
        }

        $(".Tab2").click(function(){
               $('#tab_option1').hide();
               $('#tab_option2').show();
               $('#tab_option3').hide();
        });

        $(".Tab1").click(function(){
               $('#tab_option2').hide();
               $('#tab_option1').show();
               $('#tab_option3').hide();
        });

        $(".Tab3").click(function(){
               $('#tab_option2').hide();
               $('#tab_option1').hide();
               $('#tab_option3').show();
        });
});