<!--
function random_content(){
	var topo=new Array();
	//specify random content below.
	topo[1] = 'topo0a.jpg';
	topo[2] = 'topo0b.jpg';
	topo[3] = 'topo0c.jpg';
	topo[4] = 'topo0d.jpg';
	topo[5] = 'topo0e.jpg';
	
	var ry = Math.round(Math.random() * 5);
	if (ry==0)  ry=1;
	document.write('<img border="0" src="http://www.ipam.org.br/web/images/' + topo[ry] + '" width="778" height="127" usemap="#topo">');
}
random_content();
//-->