通过谷歌地图定位、并且通过经纬度标注位置与信息窗口提示。效果如下：

示例代码：

var map;
//var directionsDisplay;
var scenicLat = "<?php echo $lat;?>";
var scenicLng = "<?php echo $lng;?>";
if( (scenicLat == '0') || (scenicLng == '0') )
{
	$.prompt('没有领队信息，请稍后再试',{
		buttons: { "确定": true }
	});
}
var bounds;
var index=100;

function clickPoint(lat,lng)
{

	if( (lat == '0') || (lng == '0') )
	{
		$.prompt('没有领队信息，请稍后再试',{
			buttons: { "确定": true }
		});
		return false;
	}
		
	var infowindow = new google.maps.InfoWindow({
		disableAutoPan:false,
		maxWidth:200,
		content: ""
	});		
	
	google.maps.event.addListener(map, 'click', function() {
		infowindow.close();
	});
	
	var scenicPoint = new google.maps.LatLng(lat, lng);
	bounds.extend(scenicPoint);
	var image2 = new google.maps.MarkerImage('<?php echo site_url('assets/images/pointer.png');?>');
	var scenic = new google.maps.Marker({ position: scenicPoint,icon:image2});
	scenic.setMap(map);
	infowindow.setContent('<?php echo $name."&nbsp; ";?><?php echo $time;?>');
	infowindow.open(map,scenic);
	$(".gm-style-iw").next("div").remove();
	map.fitBounds(bounds);
	google.maps.event.addListener(scenic, 'click', function(event){
		
		if(scenic != undefined ) {
			scenic.setZIndex(index++);

			infowindow.setContent('<?php echo $name."  ";?><?php echo $time;?>');
			infowindow.open(map,scenic);
			$(".gm-style-iw").next("div").remove();
		} else {
			//map.fitBounds(bounds);
			infowindow.close();
		}
	});
}

function initialize() {
	bounds = new google.maps.LatLngBounds();
	var mapOptions = {
		zoom: 14,
		mapTypeId: google.maps.MapTypeId.ROADMAP,
		mapTypeControl:false
	};
	map = new google.maps.Map(document.getElementById('map'),
		mapOptions);

	var infowindow = new google.maps.InfoWindow({
		disableAutoPan:false,
		maxWidth:200,
		content: ""
	});

	google.maps.event.addListener(map, 'click', function() {
		infowindow.close();
	});
	
	// Try HTML5 geolocation
	if(navigator.geolocation) {
		navigator.geolocation.getCurrentPosition(function(position) {
			var nowLng = position.coords.longitude;
			var nowLat = position.coords.latitude;

			var now = new google.maps.LatLng(nowLat, nowLng);
			bounds.extend(now);
			var image = new google.maps.MarkerImage('<?php echo site_url('assets/images/cur.png');?>');
			var location = new google.maps.Marker({ position: now,icon: image});
			location.setMap(map);
			google.maps.event.addListener(location, 'click', function(event){
				if(location != undefined ) {
					location.setZIndex(index++);
					infowindow.setContent('当前位置');
					infowindow.open(map,location);
					$(".gm-style-iw").next("div").remove();
				} else {
					infowindow.close();
				}
			});

			if((scenicLat != 0) || (scenicLng !=0) )
			{
				var scenicPoint = new google.maps.LatLng(scenicLat, scenicLng);
				bounds.extend(scenicPoint);
				var image2 = new google.maps.MarkerImage('<?php echo site_url('assets/images/pointer.png');?>');
				var scenic = new google.maps.Marker({ position: scenicPoint,icon: image2});
				scenic.setMap(map);
				infowindow.setContent('<?php echo $name."  ";?><?php echo $time;?>');
				infowindow.open(map,scenic);
				$(".gm-style-iw").next("div").remove();
				google.maps.event.addListener(scenic, 'click', function(event){
					if(scenic != undefined ) {
						scenic.setZIndex(index++);

						infowindow.setContent('<?php echo $name."  ";?><?php echo $time;?>');
						infowindow.open(map,scenic);
						$(".gm-style-iw").next("div").remove();
					} else {
						infowindow.close();
					}
				});
			}

			map.fitBounds(bounds);

		}, function() {
			$.prompt('定位失败',{
				buttons: { "确定": true }
			});

			var scenicPoint = new google.maps.LatLng(scenicLat, scenicLng);
			bounds.extend(scenicPoint);
			var point = new google.maps.Marker({ position: scenicPoint});
			point.setMap(map);
			infowindow.setContent('<?php echo $name."  ";?><?php echo $time;?>');
			infowindow.open(map,point);		
			$(".gm-style-iw").next("div").remove();
			google.maps.event.addListener(point, 'click', function(event){
				if(point != undefined ) {
					point.setZIndex(index++);

					infowindow.setContent('<?php echo $name."  ";?><?php echo $time;?>');
					infowindow.open(map,point);
					$(".gm-style-iw").next("div").remove();
				} else {
					infowindow.close();
				}
			});

			map.fitBounds(bounds);

		});
	} else {
		$.prompt('定位失败',{
			buttons: { "确定": true }
		});

		var scenicPoint = new google.maps.LatLng(scenicLat, scenicLng);
		bounds.extend(scenicPoint);
		var point = new google.maps.Marker({ position: scenicPoint});
		point.setMap(map);
		infowindow.setContent('<?php echo $name."  ";?><?php echo $time;?>');
		infowindow.open(map,point);
		$(".gm-style-iw").next("div").remove();
		google.maps.event.addListener(point, 'click', function(event){
			if(point != undefined ) {
				point.setZIndex(index++);

				infowindow.setContent('<?php echo $name."  ";?><?php echo $time;?>');
				infowindow.open(map,point);
				$(".gm-style-iw").next("div").remove();
			} else {
				infowindow.close();
			}
		});

		map.fitBounds(bounds);
	}
}

google.maps.event.addDomListener(window, 'load', initialize);