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 inBox = 0;
var outBox = 1;
var cImg = 2;
var imgArray = new Array('header_alt0.jpg', 'header_alt1.jpg', 'header_alt2.jpg', 'header_alt3.jpg', 'header_alt4.jpg', 'header_alt5.jpg');
function doFade() {
	var b1 = $('b1');
	var img = imgArray[cImg];
	if (img == undefined) img = imgArray[0];
	$('img'+inBox).attributes.src.value = 'imgs/'+img;
	$('#b'+outBox).fadeOut('slow');
	$('#b'+inBox).fadeIn('slow');
	if (inBox) {
		inBox = 0;
		outBox = 1
	}else{
		inBox = 1;
		outBox = 0
	}
	setTimeout(doFade,10000);
	cImg = getRandom(cImg);	
}
function getRandom(n) {
	var o =  Math.floor(Math.random()*(imgArray.length-1));
	if (o==n || o == undefined ) {
		getRandom(n);
	}else{
		
		return o;	
	}
}

function printpage()
{
window.print();
}
<!--
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 mailpage()
{
mail_str = "mailto:?subject=The Chalmers Center for Economic Development";
//mail_str = "mailto:?subject=Check out the " + document.title;
mail_str += "&body=The Chalmers Center trains the church worldwide to minister to the poor without creating dependency. I thought you might be interested in viewing the following page on the Chalmers Center web site: " + location.href;
location.href = mail_str;
}