function useTheData(doc){
console.log("Starts Parse");
console.log(doc[0].placemarks.length);
for (var i = 0; i < doc[0].placemarks.length; i++){
    console.log("i: "+i+", placemark:");
    console.log(doc[0].placemarks[i]); //here the .marker property exists in the console
    console.log(".marker:");
    console.log(doc[0].placemarks[i].marker); //here it says it's undefined!
    if(doc[0].placemarks[i].polyline){ //check if it's a polyline
        google.maps.event.addListener(doc[0].placemarks[i].polyline, 'click', select_option);
    }
    else{
        console.log("### i = "+i);
        console.log("1");
        console.log(doc[0].placemarks[i].marker); //here, the exact same object, doesn't have the marker property!
        console.log("2");
        google.maps.event.addListener(doc[0].placemarks[i].marker, 'click', select_option); //Because of that, the first time the page loads, it get's stuck in the function cuz it can't access the .marker
        console.log("3");
        doc[0].placemarks[i].marker.setIcon({
            url: "img/bola.png",
            scaledSize: new google.maps.Size(10, 10),
            anchor: new google.maps.Point(5, 5)
        });
        console.log("4");
    }
}
console.log("End Parse");
google.maps.event.addListener(map, 'click', select_option);
}