text: $(function(){
  
      //擦除效果
      jQuery.extend(jQuery.easing,
          {
              easeOutBack: function (x, t, b, c, d, s) {
                  s = s || 1.3;
                  return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
          }
      });
      
      //nav初始化选中
      var navCurr = $("#navCurr");
      $("#navSelected").css("left", navCurr[0].offsetLeft);
      
      //nav里的链接hover效果
      $("#navBd li").hover(function(){
              if(!!$("#navSelected").stop(true).animate({left:$(this)[0].offsetLeft}, 400, "easeOutBack")) {
                  $(this).siblings().removeClass("navHover").end().addClass("navHover");
                  $(this).find("a").hide().fadeIn(300);
              }
              
          }, function(){
              $(this).removeClass("navHover");
              $("#navCurr").addClass("navHover");
              //window.setTimeout(function(){$("#navCurr").parent().addClass("navHover")},100);
              $("#navSelected").stop(true).animate({left:navCurr[0].offsetLeft}, 300, "easeOutBack");
          }
      );
  
  })