logo_on = new Image(224,120);		logo_on.src="http://www.plurisnet.it/images/pluris-logo2.jpg";
	logo_off = new Image(224,120);		logo_off.src="http://www.plurisnet.it/images/pluris-logo.jpg";

	leaf_on = new Image(100,70);		leaf_on.src="http://www.plurisnet.it/images/leafdesign-hover.jpg";
	leaf_off = new Image(100,70);		leaf_off.src="http://www.plurisnet.it/images/leafdesign.jpg";
	
	flagita_on = new Image(22,16);		flagita_on.src="http://www.plurisnet.it/images/flag-ita-hover.jpg";
	flagita_off = new Image(22,16);		flagita_off.src="http://www.plurisnet.it/images/flag-ita.jpg";
	
	flageng_on = new Image(22,16);		flageng_on.src="http://www.plurisnet.it/images/flag-eng-hover.jpg";
	flageng_off = new Image(22,16);		flageng_off.src="http://www.plurisnet.it/images/flag-eng.jpg";



	function over_image(parm_name)
		{
			document[parm_name].src = eval(parm_name + "_on.src");
		}
	function off_image(parm_name)
		{
			document[parm_name].src = eval(parm_name + "_off.src");
		}