Urgently: how to use the ajax to pin more point (retrieve)

JavaScript
1

hi i am doing a project now i going to use ajax to retrieve coordinate from the json in html and pin the coordinate onto a point on the map using javascript but the problem is i am only able to use one point on the map can tell me what to add in ? or how should i change it with? p.s it will be nice if u can change the code from the below and show me how

function addSymbol() {
if (omap.map.getLayer(“symbolLayer”) == null) {
omap.map.addLayer(gLayer);
omap.map.infoWindow.resize(760, 425);
}
gLayer.clear();
function ajaxRequest(){
var activexmodes=[“Msxml2.XMLHTTP”, “Microsoft.XMLHTTP”]
if (window.ActiveXObject){
for (var i=0; i<activexmodes.length; i++){
try{
return new ActiveXObject(activexmodes[i])
}catch(e){ }
}
}
else if (window.XMLHttpRequest)
return new XMLHttpRequest()
else
return false
}

    var mygetrequest=new ajaxRequest()
    mygetrequest.onreadystatechange=function(){
		if (mygetrequest.readyState==4){
			if (mygetrequest.status==200 || window.location.href.indexOf("http")==-1){
			   var books=eval("("+mygetrequest.responseText+")") //retrieve result as an JavaScript object
			   var rssentries=books.places
			   var output = ""
			   var xCoo = ""
			   var yCoo= ""
			   for (var i=0; i&lt;rssentries.length; i++){
					output += rssentries[i].name
					xCoo += rssentries[i].x_coordinate
					yCoo += rssentries[i].y_coordinate
				}
			   document.getElementById("result").innerHTML = output
			   var stX = xCoo
			   var stY = yCoo
			   var pt = new esri.geometry.Point(stX, stY, omap.map.spatialReference);
			   var attr = { "PlaceName": " Singapore", "PlaceAddr": "addr" };
			   var strImage = "http://www.rw-designer.com/i/download48b.png";
			   var symbol = new esri.symbol.PictureMarkerSymbol(strImage, 25, 25);
			   var infoTemplate = new esri.InfoTemplate();
			   infoTemplate.setContent();
			   var graphic = new esri.Graphic(pt, symbol, attr, infoTemplate);
			   gLayer.add(graphic);
			}
		else{
				alert("An error has occured making the request")
			}
		}
	}
	mygetrequest.open("GET", "HTMLPage3.htm", true)
	mygetrequest.send(null);
    }
dojo.addOnLoad(addSymbol);

this htmlpage3 is my json data

{ “places”: [
{
“id”: “1”,
“name”: “Chinese Swimming Club”,
“x_coordinate”: “35484.66533355533”,
“y_coordinate”: “31293.823929446196”,
“icon”: “C:/Users/L33508/Desktop/Peranakan@SG/Peranakan@SG/images/museum.png”
},
{
“id”: “2”,
“name”: “Joo Chiat Police Station”,
“x_coordinate”: “35951.524906914485”,
“y_coordinate”: “31862.739419191174”,
“icon”: “C:/Users/L33508/Desktop/Peranakan@SG/Peranakan@SG/images/museum.png”
},
{
“id”: “3”,
“name”: “Saint Patrick Secondary School”,
“x_coordinate”: “55555.5555”,
“y_coordinate”: “55555.5555”,
“icon”: “C:/Users/L33508/Desktop/Peranakan@SG/Peranakan@SG/images/museum.png”
},
{
“id”: “4”,
“name”: “Red House”,
“x_coordinate”: “66666.6666”,
“y_coordinate”: “66666.6666”,
“icon”: “C:/Users/L33508/Desktop/Peranakan@SG/Peranakan@SG/images/museum.png”
},
{
“id”: “5”,
“name”: “Amber Road Sea View”,
“x_coordinate”: “35580.593252799175”,
“y_coordinate”: “31579.825950310897”,
“icon”: “C:/Users/L33508/Desktop/Peranakan@SG/Peranakan@SG/images/museum.png”
}
]
}