$(document).ready(function(){ 
$("#actualProjectImage img").attr({'src':'fileadmin/img/referenzen/thumbnails/Header_BASF_Aktuell_grau-k.jpg'});
	$("#actualProjectImage img").mouseover( function() { 
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			$(this).attr({'src':'fileadmin/img/referenzen/thumbnails/Header_BASF_Aktuell_rgb-k.jpg'});
			if (this.complete) $(this).fadeIn(500);
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    });
    $("#actualProjectImage img").mouseout( function() { 
		$(this).fadeOut(200, function() {
			
			$(this).attr({'src':'fileadmin/img/referenzen/thumbnails/Header_BASF_Aktuell_grau-k.jpg'});
			if (this.complete) $(this).fadeIn(500);
		});
    });
});