var slng = "";
var slat = "";

//???
function initMap() {
    createMap(); //???
    setMapEvent(); //?
    addMapControl(); //??
}

//?
function createMap() {
    var map = new BMap.Map("dituContent"); //???д?
    var point = new BMap.Point(104.114129, 37.550339); //
    map.centerAndZoom(point, 5); //?趨?
    window.map = map; //??map?洢?
    var marker = new BMap.Marker(point);  // ???
    marker.enableDragging();    //?
    map.addOverlay(marker);              // ???  
    map.addEventListener("click", showInfo);
    slng = point.lng;
    slat = point.lat;
}

//???(?á??λ)??
function createMap1() {
    var map = new BMap.Map("dituContent"); //???д?
    var point = new BMap.Point(104.114129, 37.550339); //
    map.centerAndZoom(point, 5); //?趨?
    window.map = map; //??map?洢?
}


//?γ???λ
function addAddress(lng, lat,info) {
    createMap1(); //???
    setMapEvent(); //?
    addMapControl(); //??
    map.clearOverlays();
    var point = new BMap.Point(lng, lat);
    var marker = new BMap.Marker(point);  // ???
    map.centerAndZoom(point, 16);
    map.addOverlay(marker);              // ???     
    marker.addEventListener("click", function () {
        this.openInfoWindow(new BMap.InfoWindow(info, {
            width: 120,     // ??
            height: 80,     // ?
            title: ""  // ??
        }));
    });
    marker.setAnimation(BMAP_ANIMATION_BOUNCE); //?
    marker.openInfoWindow(new BMap.InfoWindow(info, {
        width: 120,     // ??
        height: 80,     // ?
        title: ""  // ??
    }));
    slng = lng;
    slat = lat;
}

//?λ
function findAddress(address, city) {
//    createMap(); //???
//    setMapEvent(); //?
//    addMapControl(); //??
    // 
    var myGeo = new BMap.Geocoder();
    // ?,
    myGeo.getPoint(address, function (point) {
        if (point) {
            map.clearOverlays();
            map.centerAndZoom(point, 16);
            var marker = new BMap.Marker(point);  // ???
            marker.enableDragging();    //?
            map.addOverlay(marker);              // ??? 
            slng = point.lng;
            slat = point.lat;
        }
    }, city);
}

//???λ
function showInfo(e) {
    map.clearOverlays();
    var point = new BMap.Point(e.point.lng, e.point.lat);
    var marker = new BMap.Marker(point);  // ???
    marker.enableDragging();    //?
    map.addOverlay(marker);              // ???  
    slng = point.lng;
    slat = point.lat;
}

//?ú?
function setMapEvent() {
    map.enableDragging(); //?(???д)
    map.enableScrollWheelZoom(); //??С
    map.enableDoubleClickZoom(); //(???д)
    map.enableKeyboard(); //???ü??
}

//???
function addMapControl() {
    //
    var ctrl_nav = new BMap.NavigationControl({ anchor: BMAP_ANCHOR_TOP_LEFT, type: BMAP_NAVIGATION_CONTROL_LARGE });
    map.addControl(ctrl_nav);
    //??
//    var ctrl_ove = new BMap.OverviewMapControl({ anchor: BMAP_ANCHOR_BOTTOM_RIGHT, isOpen: 1 });
//    map.addControl(ctrl_ove);
    //?
    var ctrl_sca = new BMap.ScaleControl({ anchor: BMAP_ANCHOR_BOTTOM_LEFT });
    map.addControl(ctrl_sca);
}