//下拉菜单 例调用：nav('#nav');
function nav(id){
	var onav = $(id);
	var ali = onav.find('li');
	
	ali.hover(function (){
        $(this).addclass('on');
	},function (){
        $(this).removeclass('on');
	})	
	$('.subnav dd').hover(function(e) {
        $(this).addclass('current').siblings().removeclass('current');
    });
};

//select表单友情链接   例调用：onchange="location1(this)";
//链接网站在新标签页打开
function location1(s)
{       
	var d = s.options[s.selectedindex].value;
    window.open(d);
    s.selectedindex=0;	
};
//链接网站在本页面打开
function location2(s)
{  
	var d = s.options[s.selectedindex].value;
	s.selectedindex=0;
	window.top.location.href = d;	
};



/*tab切换*/
;(function($){
    $.fn.extend({
        tab: function (options){
            var defaults = {         //默认参数
                ev : 'mouseover',    //默认事件'mouseover','click'
                delay : 100,         //延迟时间
                auto : true,         //是否自动切换 true,false
                speed : 2000,        //自动切换间隔时间(毫秒)
                more : false         //是否有more,false,true
            };
            var options = $.extend(defaults, options);  //用户设置参数覆盖默认参数
            return this.each(function (){
                var o = options;
                var obj = $(this);
                var otil = obj.find('.til_tab');
                var obox = obj.find('.tablistbox');
                var omore = null;
                var inum = 0;
                var ilen = otil.length;

                //鼠标事件绑定
                otil.bind(o.ev , function (){
                    var _this = this;
                    if(o.ev == 'mouseover' && o.delay){
                        _this.timer = settimeout(function (){
                            change(_this);
                        },o.delay);
                    }else{
                        change(_this);
                    }; 
                })

                otil.bind('mouseout',function (){
                    var _this = this;
                    cleartimeout(_this.timer);
                });

                //自动切换效果
                (function autoplay(){
                    var timer2 = null;
                    if(o.auto){
                        function play(){
                            inum++;
                            if(inum >= ilen){
                                inum =0;
                            };
                            change(otil.eq(inum));
                        };
                        timer2 = setinterval(play,o.speed);

                        obj.on('mouseover',function (){
                            clearinterval(timer2);
                        })

                        obj.on('mouseout',function (){
                            timer2 = setinterval(play,o.speed);
                        })
                    };
                })();

                function change(box){
                    inum = $(box).index();
                    otil.removeclass('on');
                    obox.css('display','none');
                    if(o.more){
                        omore = obj.find('.more_tab');
                        omore.css('display','none');
                        omore.eq(inum).css('display','block');
                    };
                    otil.eq(inum).addclass('on');
                    obox.eq(inum).css('display','block');
                }
            });
        }
    })
})(jquery);