// To swap the image in the nav according to the actual section where in.

function changeImages()
{	
	var el = getElementsByClass('selected');
	for (var i=0; i < el.length; i++)
	{
		var image = el[i].firstChild;
		var source = image.getAttribute("src").split(".gif");
		var newSource = source[0] + "-down.gif";
		image.setAttribute("src", newSource);
	}
}

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];}
}


function ChangeMessage(message,champ)
{
    if(document.getElementById)
        document.getElementById(champ).innerHTML = message;
}