function TrocaBanner3() { 

var x = 1; 
x = Math.floor(Math.random()*3); 

if(x == 1){
document.write('<a href="http://www.ipgmcc.com.br" target="_blank"><img border="0" src="images/banner/carloschagas_160x60.gif" alt="Instituto de Pós-Graduação Médica Carlos Chagas" width="160" height="60"></a>'); 
}
else 
{ 
if(x == 2){
document.write('<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="160" height="60"><param name="movie" value="images/banner/unimedrio_160x60.swf"><param name="quality" value="high"><embed src="images/banner/unimedrio_160x60.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="160" height="60"></embed></object>'); 
}
else 
{ 
document.write('<img border="0" src="images/banner/alif_ok.gif" alt="Alif" width="160" height="60">'); 
}}}