<!--
	var bName = navigator.appName;
	var bVer = parseInt(navigator.appVersion);
	var ver = navigator.appVersion; 
	var MacPPC = (navigator.platform=='MacPPC') ? true : false;
	var netscapeDOM = (document.layers) ? true : false;
	var microsoftDOM = (document.all) ? true : false;
	var geckoDOM = (document.getElementById && microsoftDOM != true) ? true : false;
	
	if(geckoDOM) { netscapeDOM = false; microsoftDOM = false; }

	if (microsoftDOM) { 
	
		hidestr = "hidden";
		showstr = "visible";
		prestr = "document.all.";
		poststr = ".style";
	}
	else if (netscapeDOM) { 
	
		hidestr = "hide";
		showstr = "show";
		prestr = "document.layers.";
		poststr = "";
		
	}
	else if (geckoDOM) {
	
		hidestr = "hidden";
		showstr = "visible";
		prestr = "document.getElementById('";
		poststr = "').style";	
	
	}

	var currFront = null;
	var currBack = null;

function MM_showLayer(layername) { 
  
  if(currFront != null) { hideOld(); }
  
  eval(prestr + layername + poststr).visibility = showstr;

currFront = layername;
      
}

function hideOld() {

	eval(prestr + currFront + poststr).visibility = hidestr;
	
}

//  -->