Custom icon Google Maps V3 - google-maps

Question

This map works fine, I just have one trouble.
I need to create a different icon for each marker.
I really don't have lucky with my codes ^^
how do I?
var side_bar_html = "";
var gmarkers = [];
var map = null;
/**
*map
**/
var point = new google.maps.LatLng(-23.421409,-51.936722);
var marker = createMarker(point,"This place",contentString0)
var point = new google.maps.LatLng(-23.421409,-51.934722);
var marker = createMarker(point,"This place",contentString1)
var point = new google.maps.LatLng(-23.421409,-51.932722);
var marker = createMarker(point,"This place",contentString2)
//put the assembled side_bar_html contents into the side_bar div
document.getElementById("side_bar").innerHTML = side_bar_html;
}
var infowindow = new google.maps.InfoWindow({
size: new google.maps.Size(150,50)
});
// This function picks up the click and opens the corresponding info window
function myclick(i) {
google.maps.event.trigger(gmarkers[i], "click");
}
// A function to create the marker and set up the event window function
function createMarker(latlng, name, html) {
var contentString = html;
var marker = new google.maps.Marker({
position: latlng,
map: map,
zIndex: Math.round(latlng.lat()*-100000)<<5
});
google.maps.event.addListener(marker, 'click', function() {
infowindow.setContent(contentString);
infowindow.open(map,marker);
});
gmarkers.push(marker);
side_bar_html += '<a href="javascript:myclick(' + (gmarkers.length-1) + ')">' + name + '<\/a><br>';
}

Answer 1

In your marker constructor add an icon property with the icons URL to the anonymous object you're passing:
var marker = new google.maps.Marker({
position: latlng,
map: map,
icon:(image URL here),
zIndex: Math.round(latlng.lat()*-100000)<<5
});
https://developers.google.com/maps/documentation/javascript/reference#MarkerOptions
(Send via mobile, sorry if layout is bad).