var browser_type=navigator.appName;
var browser_version=parseInt(navigator.appVersion);
if (browser_type=="Netscape"&&browser_version>=5) {
	document.write('<link href="scripts/mozilla.css" rel="stylesheet" type="text/css">');
}
function swap(id) {
 if (document.getElementById(id).style.display != "block")
   document.getElementById(id).style.display = "block"
 else 
   document.getElementById(id).style.display = "none"
}