img1 = new Image()
img1.src = 'images/top_menu/img1_ov.jpg'
img2 = new Image()
img2.src = 'images/top_menu/img2_ov.jpg'
img3 = new Image()
img3.src = 'images/top_menu/img3_ov.jpg'
img4 = new Image()
img4.src = 'images/top_menu/img4_ov.jpg'

function menu_on(iMenu) {
	var d = document
	
	switch (iMenu) {
		case 1:
			d.getElementById('txt1').className = 'top_menu_over'
			d.getElementById('1').src = 'images/top_menu/img1_ov.jpg'
			break
		case 2:
			d.getElementById('txt2').className = 'top_menu_over'
			d.getElementById('2').src = 'images/top_menu/img2_ov.jpg'
			break
		case 3:
			d.getElementById('txt3').className = 'top_menu_over'
			d.getElementById('3').src = 'images/top_menu/img3_ov.jpg'
			break
		case 4:
			d.getElementById('txt4').className = 'top_menu_over'
			d.getElementById('4').src = 'images/top_menu/img4_ov.jpg'
			break
	}
}
function menu_off(iMenu) {
	var d = document
	
	switch (iMenu) {
		case 1:
			d.getElementById('txt1').className = 'top_menu'
			d.getElementById('1').src = 'images/top_menu/img1.jpg'
			break
		case 2:
			d.getElementById('txt2').className = 'top_menu'
			d.getElementById('2').src = 'images/top_menu/img2.jpg'
			break
		case 3:
			d.getElementById('txt3').className = 'top_menu'
			d.getElementById('3').src = 'images/top_menu/img3.jpg'
			break
		case 4:
			d.getElementById('txt4').className = 'top_menu'
			d.getElementById('4').src = 'images/top_menu/img4.jpg'
			break
	}
}
function toggle_nota(event, sDiv, iOnOff) {
	var d = document

	if (iOnOff == 1) {
		d.getElementById(sDiv).style.left = event.clientX + d.body.scrollLeft + 2
		d.getElementById(sDiv).style.top = event.clientY + d.body.scrollTop + 2
		d.getElementById(sDiv).style.display = 'inline'
	}
	else {
		d.getElementById(sDiv).style.display = 'none'
	}
}
function openWindow(sPage, sName, sParam) {
  window.open(sPage, sName, sParam)
}
function FlashInstalled(){
// Default: controlla versione 6
// FlashInstalled(8) controlla versione 8
var reqVer = (arguments.length>0)?arguments[0]:7;
var plugin = (navigator.mimeTypes && navigator.mimeTypes["application/x-shockwave-flash"]) ? navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin : 0;
var isVerOk
if (plugin) {
	var words = navigator.plugins["Shockwave Flash"].description.split(" ");
	for (var i = 0; i < words.length; ++i){
		if (isNaN(parseInt(words[i])))
		continue;
		var flaVer = words[i];
	}
	var isVerOk = true;//(flaVer >= reqVer);
}
else if (navigator.userAgent && navigator.userAgent.indexOf("MSIE")>=0 && (navigator.appVersion.indexOf("Win") != -1)){
	try {var isVerOk=new ActiveXObject("ShockwaveFlash.ShockwaveFlash."+reqVer)}
	catch (e){isVerOk=false}
}
return isVerOk;
}