<script type="text/javascript" src="http://api.map.baidu.com/api?v=1.2" charset="gb2312"></script>
                            <script type="text/javascript" charset="gb2132">
                                var map = new BMap.Map("container");
                                map.centerAndZoom(new BMap.Point('<%=map_x %>', '<%=map_y %>'), 15);
                                
                                var marker = new BMap.Marker(new BMap.Point('<%=map_x %>', '<%=map_y %>'));// create map                                
                                map.addOverlay(marker); // add mark in the map
                                
                                var opts = {width : 250,height: 100,title : "我的位置"}
                                var infoWindow = new BMap.InfoWindow("<%=comadd%>", opts);  // create information Window
                                marker.addEventListener("click", function(){          
                                   this.openInfoWindow(infoWindow);  
                                });

                                map.addControl(new BMap.NavigationControl());//NavigationControl
                                map.addControl(new BMap.ScaleControl());
                                map.addControl(new BMap.OverviewMapControl()); 
                                map.addControl(new BMap.MapTypeControl());  
                                map.setCurrentCity("<%=map_city %>"); // 仅当设置城市信息时，MapTypeControl的切换功能才能可用 
                                
                                window.setTimeout(function(){  
                                    map.panTo(new BMap.Point('<%=map_x %>', '<%=map_y %>'));  
                                }, 2000);//set the Point in the center after 2 minutes
        
                                //add right-hand button menu in the map
                                var menu = new BMap.ContextMenu();
                                var txtMenuItem = [{text:'放大',callback:function(){map.zoomIn()}},{text:'缩小',callback:function(){map.zoomOut()}}];
                                for(var i=0; i < txtMenuItem.length; i++){menu.addItem(new BMap.MenuItem(txtMenuItem[i].text,txtMenuItem[i].callback,100));}         
                                map.addContextMenu(menu);        
                                
                            </script>

------解决方案--------------------
我还遇到过 要把一些js 写在页面的下面 不可以写在head中


------解决方案--------------------
看看你的版本问题

------解决方案--------------------
贴代码出来