function preloadImages(parameters) {
	var context=parameters["context"];
	var id=parameters["id"];
	var arrImages=["Foto", "Start", "End", "Generico", "Generico_Small", "Campeggio", "Chiesa_monumento", "Gas", "Hotel", "Info_turisti", "Panoramica", "Ristorante"];
    var imagePng="/image.png";
    var imageOnPng="/image_ON.png";
    var shadowPng="/shadow.png";
    
	var html="";
	for (var indice=0;indice<arrImages.length;indice++) {
		var image1=context+arrImages[indice]+imagePng;
		var image2=context+arrImages[indice]+imageOnPng;
		var image3=context+arrImages[indice]+shadowPng;

		html+="<img src=\""+image1+"\" />";
		html+="<img src=\""+image2+"\" />";
		html+="<img src=\""+image3+"\" />";
	}	

	$("#"+id).html(html);		
}