var bannerCrt = 0;
function change_bannere( nr )
{
	var node = document.getElementById( 'containerBannere' );
    if ( node == null ) { return; }

	bannerCrt = parseInt( nr );
	var crtBID = 'B' + nr;
	if ( !document.getElementById( crtBID ) )
	{
		bannerCrt = 1;
		crtBID = 'B1';
	}

    for ( var child = node.firstChild; child; child = child.nextSibling )
	{
		// div
		child.style.display = ( child.id == crtBID ) ? 'block' : 'none';
		
		// bilutza:
		var nrID = parseInt( child.id.replace( 'B', '') );

		var bilutza = document.getElementById( 'b_' + nrID );
		// middle:
		if ( bilutza )
		{
			bilutza.className = ( nrID == bannerCrt ) ? 'selected' : '';
		}
	}
}

function action_bannere()
{
	change_bannere( bannerCrt + 1 );
	setTimeout( 'action_bannere()', 12000 );
}