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_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];}
}

var ie55 = /msie 5\.[56789]/i.test( navigator.userAgent );

// IE55 has a serious DOM1 bug... Patch it!
if ( ie55 ) {
    document._getElementsByTagName = document.getElementsByTagName;
    document.getElementsByTagName = function ( sTagName ) {
        if ( sTagName == "*" )
			return document.all;
        else
			return document._getElementsByTagName( sTagName );
    };
}


function showhidelayer(whichLayer) {
	var ie4 = (document.all) ? true : false;
	var ns4 = (document.layers) ? true : false;
	var ns6 = (document.getElementById && !document.all) ? true : false;
	
	if (ie4){
		if(document.all[whichLayer].style.display=="block"){
			document.all[whichLayer].style.display = "none";
		}else{
			document.all[whichLayer].style.display = "block";
		}
	}
	if (ns4){
		if(document.layers[whichLayer].display == "block"){
			document.layers[whichLayer].display = "none";
		}else{
			document.layers[whichLayer].display = "block";
		}
	}
	if (ns6){
		if(document.getElementById([whichLayer]).style.display == "block"){
			document.getElementById([whichLayer]).style.display = "none";
		}else{
			document.getElementById([whichLayer]).style.display = "block";
		}
	}
}