Google map,javacsript varable populated from code behind

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C#

ASP.NET

Javascript

Google-Maps

Hello all
I have posted this question before and even thou someone gave me a great article to read. I must admit it was way over my head. To simplify and if someone can just assist me with his issue it would be greatly appreciated. Here is my problem. I have a JavaScript code in google map that reference and image from a location on my website. the JavaScript function looks like this.

function createMarker(point, html, StartEnd) {
    var markerImage = "Images/AirplaneIcon.gif";
    var markerIcon = new GIcon(G_DEFAULT_ICON);
    markerIcon.image = markerImage;
    markerIcon.iconSize = new GSize(50, 50);
    markerIcon.iconAnchor = new GPoint(25, 25);
    var markerImage2 = "/Icons/IntersectionIconRed.png";
    var markerIcon2 = new GIcon(G_DEFAULT_ICON);
    markerIcon2.image = markerImage2;
    markerIcon2.iconSize = new GSize(25, 25);
    markerIcon2.iconAnchor = new GPoint(20, 20);
//    var markerImage2 = "http://localhost:3301/icons/Icons.aspx";

//    var markerIcon2 = new GIcon(G_DEFAULT_ICON);
//    markerIcon2.image = markerImage2;
//    markerIcon2.iconSize = new GSize(25, 25);
//    markerIcon2.iconAnchor = new GPoint(20, 20);

    var marker;
    if (StartEnd == "true") {
        marker = new GMarker(point, { icon: markerIcon });
    }
    else {
        marker = new GMarker(point, { icon: markerIcon2 });
    }
    GEvent.addListener(marker, "click", function() {
        marker.openInfoWindowHtml(html);
    });
    return marker;
}

I need to be able to call the markerImage from the code behind server side event. I have tried several attempts to figure it out but with no luck. Including GetByElementID, placing using an asp image and so on.. Can someone please help.

Thank you:confused::confused::confused::confused: