$getScript Method to load google maps api -> blank page?

Question

I have a little button on my page that should load a google map. Since I want my page to load really fast and this feature is not actually necessary I don't want to embed the google maps API script on page-load. I just want to load it when the button is actually clicked.

I tried using the jquery $.getScript() method, however if I'm using the code above I'm getting a blank page. The page starts loading and as soon as my javascript file gets executed the page is blank (white).

$.getScript("http://maps.google.com/maps/api/js?sensor=false", function(){
    $('#googleMap').live('click', function(e) {

        e.preventDefault();
        loadMap("mapBottomContainer", false);

    });
});

What am I doing wrong here?

edit/update:

Doesn't seem to make a difference if I do this:

$('#googleMap').live('click', function(e) {

    $.getScript("http://maps.google.com/maps/api/js?sensor=false", function(){

        e.preventDefault();
        loadMap("mapBottomContainer", false);

    });

});

The page doesn't get blank on page-load however as soon as I click on the maps-button the page gets whitened.

update 2:

the loadMap function:

function loadMap(cont, scroll) {

    var latlng = new google.maps.LatLng(47.244236,11.249194);
    var options = {
        zoom: 14,
        center: latlng,
        mapTypeId: google.maps.MapTypeId.ROADMAP,
        scrollwheel: scroll,
        streetViewControl: false,
        navigationControlOptions: {  
            style: google.maps.NavigationControlStyle.SMALL 
        }
    }

    var map = new google.maps.Map(document.getElementById(cont), options);

    var mapdesc = '<div id="gmContent">'+
    '<h3 id="gmTitle" class="widget-title">Something</h3>'+
    '<div id="gmBody">'+
    '</div>'+
    '</div>';

    var infowindow = new google.maps.InfoWindow({
        content: mapdesc
    });

    var marker = new google.maps.Marker({
        position: latlng,
        map: map,
        title: 'My Title'
    });

    google.maps.event.addListener(marker, 'click', function() {
        infowindow.open(map,marker);
    });

    infowindow.open(map,marker);

}