how to give location in my website

<script>
    function initialize() {
        var mapProp = {
            center: new google.maps.LatLng(18.511343628, 73.8531372),
            zoom: 11,

            mapTypeId: google.maps.MapTypeId.ROADMAP
        };
        var marker = new google.maps.Marker;
        var map = new google.maps.Map(document.getElementById("googleMap"), mapProp);
    }

    google.maps.event.addDomListener(window, 'load', initialize);
    mapProp.open(map, marker);

    window.onload = initialize;
</script>