jQuery.fn.extend({
  tabs: function(o){
    var opt = {
      event: o.event || 'hover',
      className: o.className || '.site_tabs',
      varyTime: o.varyTime || 5000
    }
    var autoDom, domCount, currentId, showTimer;;
    
    var root = this;
    $$ = this.find(opt.className);
    
    function show(obj){
      if(typeof obj != 'object'){
        if(currentId == domCount) currentId = 0;
        obj = $$.eq(currentId);
      }
      
      if(typeof obj == 'object'){
        var dom = obj.attr('href');
        obj.addClass('active');
        $(dom).show();
        currentId = obj.index();
        currentId += 1;
        obj.siblings(opt.className).each(function(){
          $(this).removeClass('active');
          var dom = $(this).attr('href');
          $(dom).hide();
        });
      }
    }
    
    $$.each(function(i){
      $(this).css({cursor: 'pointer'});
      var dom = $(this).attr('href');
      if(o.auto){
        $(dom).hover(function(){
          clearInterval(showTimer);
        },function(){
          showTimer = window.setInterval(show, opt.varyTime);
        });
      }
      if($(dom).attr('alt') != 'default'){
        $(dom).hide();
      }
    });
    
    if(o.auto){
      currentId = 0;
      domCount = $$.size();
      showTimer = window.setInterval(show, opt.varyTime);
      $$.hover(function(){
        clearInterval(showTimer);
      },function(){
        showTimer = window.setInterval(show, opt.varyTime);
      });
    }
    
    switch(opt.event){
      case 'click':
        $$.click(function(){ show($(this)); });
      break;
      default:
        $$.hover(function(){
          show($(this));
        },function(){
          return false;
        });
    }
  },
  imageShow: function(o){
    var opt = {
      fadeOutTime: o.fadeOutTime || 500,
      fadeInTime: o.fadeInTime || 500,
      dom: o.dom || '#' + this.attr('id'),
      varyTime: o.varyTime || 5000
    }
    
    var currentId, timeInt, imgCount, showTimer;
    
    imgCount = $(opt.dom + ' .focus_change_list li').size();
    if(imgCount > 0){
      $(opt.dom + ' .focus_change_list li').each(function(i){
        if(i > 0) $(this).hide();
        currentId = 0;
      });
      
      function show(){
        $(opt.dom + ' .focus_change_list li').eq(currentId).fadeOut(opt.fadeOutTime);
        currentId += 1;
        if(currentId == imgCount) currentId = 0;
        $(opt.dom + ' .focus_change_list li').eq(currentId).fadeIn(opt.fadeInTime);
        $(opt.dom + ' .focus_change_btn li').each(function(i){ 
          if(i == currentId){
            $(this).addClass('current');
          }else{
            $(this).removeClass('current');
          }
        });
      }
      
      showTimer = window.setInterval(show, opt.varyTime);
      
      $(opt.dom).hover(function(){
        clearInterval(showTimer)
      }, function(){
        showTimer = window.setInterval(show, opt.varyTime);
      });
      
      $(opt.dom + ' .focus_change_btn li').hover(function(){
        var h = $(this).index();
        if(h != currentId){
          $(opt.dom + ' .focus_change_list li').eq(currentId).fadeOut(opt.fadeOutTime);
          if(h > 0){
            currentId = h - 1;
          }else{
            currentId = imgCount-1;
          }
          show();
        }
      });
    }
  },
  slide: function(o){
    var opt = {
      varyTime: o.varyTime || 3000
    }
    var currentId = 0;
    var visibleCount = 0;
    var $$ = this;
    var c = $$.children().size();
    
    switch(o.direction){
      case 'x':
        var chWidth = parseInt($$.children().eq(0).css('width'));
        var dowWidth = c*chWidth;
        var ac;
        $$.css({width: dowWidth, overflow: 'hidden', position: 'absolute'}).parent().css({position: 'relative'});
        
        if(o.visibleCount > 1){
          visibleCount = c - o.visibleCount;
        }else{
          visibleCount = c;
        }
        
        function showX(){
          currentId += 1;
          if(currentId == visibleCount) currentId = 0;
          $$.animate({left:-(o.size*currentId)}, 500);
        }
        ac = window.setInterval(showX, opt.varyTime);
        $$.hover(function(){
          clearInterval(ac)
        }, function(){
          ac = window.setInterval(showX, opt.varyTime);
        });
        if(o.nextButton){
          $(o.nextButton).click(function(){
            showX();
            return false;
          });
        }
        if(o.prevButton){
          $(o.prevButton).click(function(){
            if(currentId > 1){
              currentId -= 2;
              showX();
            }
            return false;
          });
        }
      break;
      case 'y':
        
        //var chWidth = parseInt($$.children().eq(0).css('height'));
        var dowWidth = c*o.size;
        var bc;
        $$.css({height: dowWidth, overflow: 'hidden', position: 'absolute'}).parent().css({position: 'relative'});
        
        if(o.visibleCount > 1){
          visibleCount = c - o.visibleCount;
        }else{
          visibleCount = c;
        }
        
        function showY(){
          currentId += 1;
          if(currentId == visibleCount) currentId = 0;
          $$.animate({top:-(o.size*currentId)}, 700);
        }
        bc = window.setInterval(showY, opt.varyTime);
        $$.hover(function(){
          clearInterval(bc)
        }, function(){
          bc = window.setInterval(showY, opt.varyTime);
        });
    }
  }
});
function favorite(title, url){
  if($.browser.msie){
    window.external.addFavorite(url, title);
  }else{
    window.sidebar.addPanel(title, url, '');
  }
};