function rcBanner( cLink, cBanner, cAlt, nTime ){
        this.link=cLink
	this.banner=cBanner
	this.time=nTime
        this.alt=cAlt
	return this
}

banner = new Array();

banner[0]= new rcBanner( "http://www.compeed.com.pt",    "/pics/compeed.gif", "Compeed", 8000 );
banner[1]= new rcBanner( "http://www.praia-del-rey.com", "/pics/praia.gif", "Praia del Rey", 7000 );
banner[2]= new rcBanner( "http://www.lusobike.com",      "/pics/lusobike.gif", "LusoBike", 6000 );
banner[3]= new rcBanner( "http://www.borgesdesousa.com", "/pics/osteopatia.gif", "Clínica de Osteopatia", 5000 );


nPos = Math.floor( Math.random() * banner.length);

function mostraBanner( cParent )
{
  document.write( "<a href='" + banner[nPos].link +
                  "'  target='_blank'> <img name='Banner01' alt='" + banner[nPos].alt +
                  "' border='0' src='" + cParent +
                  banner[nPos].banner + "' > </a>" );
  setTimeout( "mudaBanner(\"" + cParent + "\")", banner[0].time );
}

function mudaBanner( cParent )
{
  nPos = ( nPos + 1 ) % banner.length;
  document.images.Banner01.alt = banner[nPos].alt;
  document.images.Banner01.src = cParent + banner[nPos].banner;
  document.links[0].href = banner[nPos].link;
  setTimeout( "mudaBanner(\"" + cParent + "\")", banner[nPos].time );
}