MAX  = 5;
  url  = new Array(MAX);
  img  = new Array(MAX);

	url[0]="http://www.submarino.com.br/books_productdetails.asp?ProdTypeId=1&ProdId=1073596&St=MV&franq=139463\" target=\"_blank"
	img[0]="http://www.grito.com.br/banners/banner_memoria.gif"
	
	url[1]="http://www.submarino.com.br/books_productdetails.asp?ProdTypeId=1&ProdId=1028934&St=MV&franq=139463\" target=\"_blank"
	img[1]="http://www.grito.com.br/banners/banner_wollner.gif"
	
	url[2]="http://www.submarino.com.br/books_productdetails.asp?ProdTypeId=1&ProdId=195524&St=MV&franq=139463\" target=\"_blank"
	img[2]="http://www.grito.com.br/banners/banner_valor.gif"
	
	url[3]="http://www.submarino.com.br/books_productdetails.asp?ProdTypeId=1&ProdId=130471&St=MV&franq=139463\" target=\"_blank"
	img[3]="http://www.grito.com.br/banners/banner_design.gif"
	
	url[4]="http://www.submarino.com.br/books_productdetails.asp?ProdTypeId=1&ProdId=233473&St=MV&franq=139463\" target=\"_blank"
	img[4]="http://www.grito.com.br/banners/banner_padroes.gif"
	
  var now = new Date()

  var nro = (now.getSeconds() % MAX)
  document.write('<a href="'+url[nro]+'"><img src="'+img[nro]+'" border=0 align=absmiddle></a>')