Browser="e3";
if ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) Browser = "n3"; 
if ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 4 )) Browser = "n4";
if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )) Browser = "e4";
if ( Browser == "n4" || Browser == "n3" || Browser == "e4")
{
        BrowserMO = true;
}
else
{
        BrowserMO = false;
}


function change_img(source,insert)
{
	if (BrowserMO == true)
	{
		document[source].src = "/img/" + insert + ".gif";
	}
}