var fileref=document.createElement('script')
fileref.setAttribute("type","text/javascript")
fileref.setAttribute("src", "http://mytopo.com/TileService/Scripts/trimble.mytopo.v3.js?partnerID=12264&hash=f6e645d3e678f7144a8a961175a8b683")

document.getElementsByTagName("head")[0].appendChild(fileref)

function addMyTopo(map){
	try {
		if ('undefined' !== typeof trimble) {
			trimble.myTopo.MapTypeId.Topo="MyTopo";
			//alert("mytopo");
			trimble.myTopo.init(map);
			if(map.mapTypeControlOptions.mapTypeIds[0]==trimble.myTopo.MapTypeId.Topo){
				map.mapTypeControlOptions.mapTypeIds.shift()
				map.mapTypeControlOptions.mapTypeIds.push(trimble.myTopo.MapTypeId.Topo);
			}
		}
	}
	catch(err){
		
	}
}

function checkMapId(mapid){
	if(mapid == "MyTopo"){
		try {
			mapId = trimble.myTopo.MapTypeId.Topo;
		}
		catch(err) {
			mapId = "ArcGisUSA"
		}
	}
	return mapId;
}