window.addEvent('domready', function() {

  $$('[class$=showGoogleMap]').addEvent('click', function() {
  
    // Paramter zur Googlemap auslesen
    var dataContainer = this.getParent().getElement('[class=datas]');
    
    // Koordinaten
    var coordX = dataContainer.getElement('[class=coordX]').getText();
    var coordY = dataContainer.getElement('[class=coordY]').getText();
    
    window.open('/googlemap.php?x=' + coordX + '&y=' + coordY, 'googleMap', 'width=690,height=400,left=100,top=200');  
  });

});