/**

* 显示地图点.

* json的格式[{"name":"name1","x":"x1","y":"y1","img":"img1","content":"content1"}...]

*/

//地图上显示这些企业点

function displayPoints(json){

　　var layer = esri.layers.GraphicsLayer({id:"layer"});

　　$.each(json, function(index){

　　var x = this.x;

　　var y = this.y;

　　//var x = Math.round(Math.random()*360-180);

　　//var y = Math.round(Math.random()*180-90);

　　var img = this.img;

　　var pt = new esri.geometry.Point([x,y]);

　　var pictureMarkerSymbol = new esri.symbol.PictureMarkerSymbol(img, 20, 20);

　　var g = new esri.Graphic(pt, pictureMarkerSymbol);

　　var template = new esri.InfoTemplate();

　　template.setTitle(this.name);

　　template.setContent("<b>项目建设内容：</b>"+this.XMJSNR+"<br/ ><br/ >"+"<b>责任单位：</b>"+this.ZRDW);

　　g.setInfoTemplate(template);

　　layer.add(g);

　　});

　　map.addLayer(layer);

}