// start rollover
var supportOk = (parseInt(navigator.appVersion)>=4);

if (supportOk) {
	var imgDir = "img/";
	
	//nav menu
	n1on = new Image();
	n1on.src = imgDir + "esserevirtuali_nav_on.gif";
	n1off = new Image();
	n1off.src = imgDir + "esserevirtuali_nav.gif";
	
	n2on = new Image();
	n2on.src = imgDir + "esserevirtuali_nav_on.gif";
	n2off = new Image();
	n2off.src = imgDir + "esserevirtuali_nav.gif";
	
	n3on = new Image();
	n3on.src = imgDir + "esserevirtuali_nav_on.gif";
	n3off = new Image();
	n3off.src = imgDir + "esserevirtuali_nav.gif";
	
	n4on = new Image();
	n4on.src = imgDir + "esserevirtuali_nav_on.gif";
	n4off = new Image();
	n4off.src = imgDir + "esserevirtuali_nav.gif";
	
	n5on = new Image();
	n5on.src = imgDir + "esserevirtuali_nav_on.gif";
	n5off = new Image();
	n5off.src = imgDir + "esserevirtuali_nav.gif";
	
	n6on = new Image();
	n6on.src = imgDir + "esserevirtuali_nav_on.gif";
	n6off = new Image();
	n6off.src = imgDir + "esserevirtuali_nav.gif";
	
	n7on = new Image();
	n7on.src = imgDir + "esserevirtuali_nav_on.gif";
	n7off = new Image();
	n7off.src = imgDir + "esserevirtuali_nav.gif";
	
	n8on = new Image();
	n8on.src = imgDir + "esserevirtuali_nav_on.gif";
	n8off = new Image();
	n8off.src = imgDir + "esserevirtuali_nav.gif";
	
	n9on = new Image();
	n9on.src = imgDir + "esserevirtuali_nav_on.gif";
	n9off = new Image();
	n9off.src = imgDir + "esserevirtuali_nav.gif";
	
	n10on = new Image();
	n10on.src = imgDir + "esserevirtuali_nav_on.gif";
	n10off = new Image();
	n10off.src = imgDir + "esserevirtuali_nav.gif";
	
	n11on = new Image();
	n11on.src = imgDir + "esserevirtuali_nav_on.gif";
	n11off = new Image();
	n11off.src = imgDir + "esserevirtuali_nav.gif";
	
	n12on = new Image();
	n12on.src = imgDir + "esserevirtuali_nav_on.gif";
	n12off = new Image();
	n12off.src = imgDir + "esserevirtuali_nav.gif";
	
	n13on = new Image();
	n13on.src = imgDir + "esserevirtuali_nav_on.gif";
	n13off = new Image();
	n13off.src = imgDir + "esserevirtuali_nav.gif";
	
	n14on = new Image();
	n14on.src = imgDir + "esserevirtuali_nav_on.gif";
	n14off = new Image();
	n14off.src = imgDir + "esserevirtuali_nav.gif";
	
	n15on = new Image();
	n15on.src = imgDir + "esserevirtuali_nav_on.gif";
	n15off = new Image();
	n15off.src = imgDir + "esserevirtuali_nav.gif";
	
	n16on = new Image();
	n16on.src = imgDir + "esserevirtuali_nav_on.gif";
	n16off = new Image();
	n16off.src = imgDir + "esserevirtuali_nav.gif";
	
	n17on = new Image();
	n17on.src = imgDir + "esserevirtuali_nav_on.gif";
	n17off = new Image();
	n17off.src = imgDir + "esserevirtuali_nav.gif";
	
	n18on = new Image();
	n18on.src = imgDir + "esserevirtuali_nav_on.gif";
	n18off = new Image();
	n18off.src = imgDir + "esserevirtuali_nav.gif";
	
	n19on = new Image();
	n19on.src = imgDir + "esserevirtuali_nav_on.gif";
	n19off = new Image();
	n19off.src = imgDir + "esserevirtuali_nav.gif";
	
	n20on = new Image();
	n20on.src = imgDir + "esserevirtuali_nav_on.gif";
	n20off = new Image();
	n20off.src = imgDir + "esserevirtuali_nav.gif";
	
	n21on = new Image();
	n21on.src = imgDir + "esserevirtuali_nav_on.gif";
	n21off = new Image();
	n21off.src = imgDir + "esserevirtuali_nav.gif";
	
	n22on = new Image();
	n22on.src = imgDir + "esserevirtuali_splashintro_center2_on.gif";
	n22off = new Image();
	n22off.src = imgDir + "esserevirtuali_splashintro_center2.gif";

	
	 function turnOn(img) {
		eval("document."+img).src = eval(img+"on").src;
	}
	
	 function turnOff(img) {
		eval("document."+img).src = eval(img+"off").src;
	}
}
// end rollover