function donews() {
    // tab1.innerhtml = tab2.innerhtml;
    var mymar=null;
    var tab2 = $("#demo2").get(0);
    var tab1 = $("#demo1").get(0);
    var tab = $("#demo").get(0);
    console.log(tab2)
    mymar = setinterval(function() {
        if (tab2.offsetwidth - tab2.scrollleft <= 0) {
            tab.scrollleft -= tab1.offsetwidth;
    } else {
        tab.scrollleft++;
    }
}, 40);
    tab.onmouseover = function() {
        clearinterval(mymar);
        mymar = null;
    };
    tab.onmouseout = function() {
        mymar = setinterval(function() {
            if (tab2.offsetwidth - tab.scrollleft <= 0) {
            tab.scrollleft -= tab1.offsetwidth;
        } else {
            tab.scrollleft++;
        }
    }, 40);
    };
}
donews();

var width = 960,
    height = 700;
//球体的转动速度
var velocity = [-.013, .013];
var projection = d3.geo.orthographic()
//.clipangle(90) // 取消注释隐藏后半圆
    .center([0, 15])
    // .translate([cx, cy])
    .scale(width / math.pi)
// .rotate([0, 0, 0]),

var path = d3.geo.path().projection(projection);
var svg = d3.select("#tw_logo").append("svg")
    .attr("width", width)
    .attr("height", height);
var point = svg.append("path")
    .datum(d3.geodesic.multipolpoint(1)) //控制点的数量
    .attr("class", "point")
// .attr("style", "color:red");
// .style("color","red");
var feature = svg.append("path")
    .datum(d3.geodesic.multilinestring(2)) //控制路径的数量
    d3.timer(function (elapsed) {
    projection.rotate([elapsed * velocity[0], elapsed * velocity[1]]);
    point.attr("d", path);
    feature.attr("d", path);
    // point.transition()
    // .duration(1000)
    // .attr("class", "point1");
    // point.transition()
    // .duration(3000)
    // .attr("class", "point");
});
// d3.timeout(function(){
//    point.transition()
//     .duration(1000)
//     .attr("class", "point1");
//   },3000)

var myswiper1 = new swiper('.swiper1', {
    effect : 'fade',
    autoplay:true,//等同于以下设置
    autoplay: {
        delay: 3000,
        stoponlastslide: false,
        disableoninteraction: true,
    },
    pagination: {
        el: '.swiper-pagination',
        clickable :true
    }
});