function calloutimg(img1,img2)
{
	this.img1  = img1;
	this.img2  = img2;
}

function get_random(x)
{
  var ret = Math.floor(Math.random()*x);
  if(ret == x) ret--;
  return ret;
}

var factoidsArr = new Array();

factoidsArr[0] = new calloutimg('factoid-1.gif','factoid-2.gif');
factoidsArr[1] = new calloutimg('factoid-3.gif','factoid-7.gif');
//factoidsArr[2] = new calloutimg('factoid-5.gif','factoid-4.gif');
factoidsArr[2] = new calloutimg('factoid-5.jpg','factoid-4.gif');
factoidsArr[3] = new calloutimg('factoid-2.gif','factoid-6.gif');

var j = get_random(factoidsArr.length);

//alert(j);


document.writeln('<div id="calloutLt"><img src="images/factoids/'+factoidsArr[j].img1+'" alt="" border="0" height="56" /></div>');
document.writeln('<div id="calloutRt"><img src="images/factoids/'+factoidsArr[j].img2+'" alt="" border="0" height="56" /></div>');