function rollover(imgID) {
  // get the image object we're referring to
  var thisimg = document.getElementById(imgID);
  // and add "_on" to its src
  thisimg.src = thisimg.src.replace(/(\.[a-z0-9]+)$/i,'_on$1');

}

function rollout(imgID) {
  // get the image object we're referring to
  var thisimg = document.getElementById(imgID);
  // and remove "_on" from its src
  thisimg.src = thisimg.src.replace(/_on(\.[a-z0-9]+)$/i,'$1');
}

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_swapImage() { //v3.0
	  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
	   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
	}

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 show(aDescriptionLayer)
	{
		var MyDiv = MM_findObj(aDescriptionLayer + "_description");
		var MyDest = MM_findObj("display_description");

		MyDest.innerHTML = MyDiv.innerHTML;
	}

	function hide(aDescriptionLayer)
	{
		var MyDiv = MM_findObj("welcome_description");
		var MyDest = MM_findObj("display_description");

		MyDest.innerHTML = MyDiv.innerHTML;
	}


	function MM_showHideLayers() { //v3.0 show/hide the layers with the rollovertext
	  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_findObj(n, d) { //v4.01 needed for the rollover
		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&&id.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
		if(!x && d.getElementById) x=d.getElementById(n); return x;
	}

	var description_divs = new Array();