function loadNSTab() {
    //alert('loadNSTab');
    $.post("/us/14102.asp", function(data){
      $("#content_wide #content_swap").replaceWith('<div id="content_swap" class="clearfloat">' + data + '</div>');
      $("#content_wide #content_swap").animate({"opacity":1}, "slow");
      closeNTTChart();
      $("#tracking").attr("src","/us/14095.html");
    });
}

function loadESTab() {
    //alert('loadESTab');
    $.post("/us/14114.asp", function(data){
      $("#content_wide #content_swap").replaceWith('<div id="content_swap" class="clearfloat">' + data + '</div>');
      $("#content_wide #content_swap").animate({"opacity":1}, "slow");
      $("#tracking").attr("src","/us/14098.html");  
    });
}

// for opening full version of Inset Chart
function openNTTChart() {
    if($(".insetchart")) {      
      if($.browser.msie) {
          $(".insetchart").css("display","block");
      }
      else {
            $(".insetchart").css("opacity",0);
            $(".insetchart").css("display","block");
            $(".insetchart").animate({"opacity":1},"slow");
        }
    }
}

// for closing Inset Chart
function closeNTTChart() {
    if($(".insetchart")) {
        $(".insetchart").click(function(){    
            if($.browser.msie) {
              $(".insetchart").css("display","none");
          }
          else {
                $(".insetchart").animate({"opacity":0},"slow",function(){
                    $(this).css("display","none");
                });
            }
        });
    }
}

// for parsing query string for opening tab setting
function getQueryVariable(variable) { 
  var query = window.location.search.substring(1); 
  var vars = query.split("&"); 
  for (var i=0;i<vars.length;i++) { 
    var pair = vars[i].split("="); 
    if (pair[0] == variable) { 
      return pair[1]; 
    } 
  }  
} 

// for making NS Tab the active tab
function activeNSTab() {
    if($.browser.msie) {
        $("#sctab_r").removeClass("on");
        $("#sctab_l").addClass("on");
        $("#sctabs").css("display","block");
    }
    else {
        $("#sctabs").fadeOut(250,function(){
            $("#sctab_r").removeClass("on");
            $("#sctab_l").addClass("on");
            $("#sctabs").fadeIn(250);
        });
    }
}

// for making the ES Tab the active tab
function activeESTab() {
    if($.browser.msie) {
        $("#sctab_l").removeClass("on");
        $("#sctab_r").addClass("on");
        $("#sctabs").css("display","block");
    }
    else {
        $("#sctabs").fadeOut(250,function(){
            $("#sctab_l").removeClass("on");
            $("#sctab_r").addClass("on");
            $("#sctabs").fadeIn(250);
        });
    }
}

// Intializations            
$(document).ready(function(){
        
    // setup for click on NS tab        
    $("#sctab_l").click(function(){                    
        $("#content_wide #content_swap").animate({"opacity":0}, "normal", function(){
            $(this).replaceWith('<div id="content_swap"></div>');                        
            loadNSTab();                
        });    
        activeNSTab();
        location.search = 'tab=NS';
        return false;                
    });
    
    // setup for click on ES tab            
    $("#sctab_r").click(function(){                    
        $("#content_wide #content_swap").animate({"opacity":0}, "normal", function(){
            $(this).replaceWith('<div id="content_swap"></div>');            
            loadESTab();                        
        });
        activeESTab();
        location.search = 'tab=ES';
        return false;
    });
    
    // for preventing caching of tab content
    $.ajaxSetup({cache:false});
    
    // for direct navigation to the ES or NS tab    
    var startTab = getQueryVariable('tab');
        
    if(startTab == 'ES') {
        activeESTab();
        loadESTab();
    }
    else if(startTab == 'NS') {
        activeNSTab();
        loadNSTab();
    }            
    else {
        activeNSTab();
        loadNSTab();
        location.search = 'tab=NS';
    }        
                                    
}); //end intializations