.btt
{
	background-image: url( 'file:///C:/Documents and Settings/Bret/Mis documentos/Visual Studio 2008/WebSites/BT2008/../imagesWeb/barra-naveg.jpg' );
}


.btt2
{
	background-image: url( 'file:///C:/Documents and Settings/Bret/Mis documentos/Visual Studio 2008/WebSites/BT2008/pimp1.gif' );
}

.centrat
{
	text-align:center;
}