Google地图标注（最新版V3下的写法）基础篇

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<script type="text/javascript">  var map;        var markersArray = [];       function initialize()        {   if(window.top.$('#<?php echo $field?>').val()) {   var data = window.top.$('#<?php echo $field?>').val();var data = data.split('|');var lngX = data[0];var latY = data[1];var zoom = data[2] ? Number(data[2]) : 10;            var latlng = new google.maps.LatLng(latY, lngX);   }   else{    var latlng = new google.maps.LatLng(41, 29);var zoom = 10;}            var myOptions = {                zoom: zoom,                center: latlng,                mapTypeId: google.maps.MapTypeId.ROADMAP            };            map = new google.maps.Map(document.getElementById("mapObj"), myOptions);            // add a click event handler to the map object            google.maps.event.addListener(map, "click", function(event)            {                // place a marker                addMarker(event.latLng);                // display the lat/lng in your form's lat/lng fields            });        }        function addMarker(location) {            // first remove all markers if there are any            deleteOverlays();            var marker = new google.maps.Marker({                position: location,                 map: map            });            // add marker in markers array            markersArray.push(marker);var ZoomLevel = map.getZoom();window.top.$('#<?php echo $field?>').val(location.lat()+'|'+location.lng()+'|'+ZoomLevel);            //map.setCenter(location);        }        // Deletes all markers in the array by removing references to them        function deleteOverlays() {            if (markersArray) {                for (i in markersArray) {                    markersArray[i].setMap(null);                }            markersArray.length = 0;            }        }google.maps.event.addDomListener(window, 'load', initialize);    </script>
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