function mostrarBanner() 
{ 

total=3; 
banner = Math.floor(Math.random() * total); 

switch(banner) 
{ 
case 0: 
document.write("<A HREF='http://www.acindar.com.ar/sgr/index.asp' TARGET='_blank'><IMG SRC='img/pymes.gif' BORDER='0'></A>"); 
break; 
case 1: 
document.write("<A HREF='http://extranet.acindar.com.ar/inicial.htm?vc_app=CLI' TARGET='_blank'><IMG SRC='img/bannerWebClientes.gif' BORDER='0'></A>"); 
break; 
case 2: 
document.write("<A HREF='/reporte06/index.asp' TARGET='_blank'><IMG SRC='img/bannerReporteSus.gif' BORDER='0'></A>"); 
break; 
} 

}