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 changeback(originalcolor){
if (event.fromElement.contains(event.toElement)||source.contains(event.toElement)||source.id=="ignore")
return
if (event.toElement!=source)
source.style.backgroundColor=originalcolor
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }
}

function MM_showLayer(layername) { 
  
  if(currFront != null) { hideOld(); }
  
  eval(prestr + layername + poststr).visibility = showstr;

currFront = layername;
      
}

function hideOld() {

	eval(prestr + currFront + poststr).visibility = hidestr;
	
}