function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function changeImagesArray(array) {
	if (preloadFlag == true) {
		var d = document; var img;
		for (var i=0; i<array.length; i+=2) {
			img = null; var n = array[i];
			if (d.images) {img = d.images[n];}
			if (!img && d.getElementById) {img = d.getElementById(n);}
			if (img) {img.src = array[i+1];}
		}
	}
}
function changeImages() {
	changeImagesArray(changeImages.arguments);
}


var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		pre_home_2 = newImage('/images/toolbar/home_2.gif');
		pre_chisiamo_2 = newImage('/images/toolbar/chisiamo_2.gif');
		pre_servizi_2 = newImage('/images/toolbar/servizi_2.gif');
		pre_download_2 = newImage('/images/toolbar/download_2.gif');
		pre_clienti_2 = newImage('/images/toolbar/clienti_2.gif');
		pre_diario_2 = newImage('/images/toolbar/diario_2.gif');
		pre_contattaci_2 = newImage('/images/toolbar/contattaci_2.gif');
		pre_areabeta_2 = newImage('/images/toolbar/areabeta_2.gif');
		pre_mappa_2 = newImage('/images/toolbar/mappa_2.gif');
		pre_comunicazione_2 = newImage('/images/footer/comunicazione_2.gif');
		pre_stampa_2 = newImage('/images/footer/stampa_2.gif');
		
		preloadFlag = true;
	}
}