var nav=navigator.appName.indexOf("Netscape")
var vers=parseInt(navigator.appVersion);

// Menu 
if ((nav != -1 && vers >= 3) || (vers==4) ) {
	vincolo1 = new Image(); vincolo1.src = "../img/vincolo.gif";
	vincolo2 = new Image(); vincolo2.src = "../img/vincolo_sel.gif";
}

function SelectImage(ImageName) {
   	if ( (nav != -1 && vers >= 3) || (vers==4) ) {
		document[ImageName].src = eval(ImageName + '2' + '.src');
	}		
}

function UnSelectImage(ImageName) {
   	if ( (nav != -1 && vers >= 3) || (vers==4) ) {
		document[ImageName].src = eval(ImageName + '1' + '.src');
	}		
}

function region(MapImage){
	document['mapa'].src = 'img/mapa/mapa ' + MapImage + '.gif';
}