Show just first and last marker on path - google-maps-api-3

Question

For generate markers on google maps I call the function displayLocation with the next code:
for (var i=0; i<data.length; i++) {
displayLocation(data[i]);
}
On displayLocation I create an array with all the positions for the path I want to create and the markers, I just wanna show the first and the last marker on the path.
My displayLocation function looks like:
function displayLocation(location){
var latLng = new google.maps.LatLng(parseFloat(location.latitud), parseFloat(location.longitud));
if(location.nombreequipo=="AST1"){
var path = new google.maps.LatLng(parseFloat(location.latitud), parseFloat(location.longitud));
rutaAST1.push(path);
}
var marker = new google.maps.Marker({
position: latLng,
map: map,
icon: imagen,
draggable: false,
visible: true,
title: location.nombreequipo
});
arrayMarcadores.push(marker);
google.maps.event.addListener(marker, 'click', function(){
infowindow.setContent(content);
infowindow.open(map, marker);
});
return marker;
}
In this part of the code I set the path, I call:
varBool = true;
dibujaRutaAST1(map, rutaAST1, varBool);
And the function is:
var ruta = null;
function dibujaRutaAST1(mapa, rutaVar, varBool){
if(!ruta){
var coordRuta = rutaVar;
console.log("En función dibujo de rutas AST1: "+rutaVar);
ruta= new google.maps.Polyline({
map: mapa,
path: coordRuta,
geodesic: true,
strokeColor: "#FF0000",
strokeOpacity: 1.0,
strokeWeight: 3
});
console.log(ruta);
}if(varBool){
ruta.setMap(mapa);
}else{
ruta.setMap(null);
}
}
Iteration on markers array:
function mostrarMarcas(nombreEquipo){
for(var i=0;i<arrayMarcadores.length;i++){
if(arrayMarcadores[i].title==nombreEquipo){
arrayMarcadores[i].setVisible(true);
}
}
}
Any suggestion?
Thanks.

Answer 1

Finally I just create the first and the last marker from my array with all the points:
if(rutaAST1.length!=0){
dibujaRutaAST1(map, rutaAST1, varBool);
var imagen ='img/markers/blue_MarkerA.png';
var markerIniAST1 = new google.maps.Marker({
position: rutaAST1[0],
map: map,
icon: imagen,
draggable: false,
visible: true,
title: "AST1"
});
google.maps.event.addListener(markerIniAST1, 'click', function(){
infowindow.setContent(contentAST1[0]);
infowindow.open(map, markerIniAST1);
});
var markerFinAST1 = new google.maps.Marker({
position: rutaAST1[rutaAST1.length-1],
map: map,
icon: imagen,
draggable: false,
visible: true,
title: "AST1"
});
google.maps.event.addListener(markerFinAST1, 'click', function(){
infowindow.setContent(contentAST1[contentAST1.length-1]);
infowindow.open(map, markerFinAST1);
});
}
Thank you so much for helping me to clear my mind with this part of my code :)