I made this because I was very unable to understand the jquery.googlemap.js code using in the geomap module. The purpose of this module is to parse geo microformats in a page and display corresponding markers on a google map.

If you are working with Google maps maybe this wil be useful to you. I make it working with location module by formatting the display of locations infos as geo microformat :

<div class="geo" title="'. $node->title .'">
    <p>
        <strong>Street : </strong>'.$location['street'].'
    </p>
    <p>
        <strong>House number : </strong>'.$location['name'].'
    </p>
    <p>
        '.$location['city'].', '.$location['province'].', '.$location['postal_code'].'
    </p>
    <span class="latitude" title="'. $location['latitude'] .'"/>
    <span class="longitude" title="'. $location['longitude'] .'"/>
</div>

You can get the file here.