function hide_tilesinfo ( id ) {
	//alert ( 'hide_tilesinfo ( id:' + id + ' )' );
	// ---	turn off all .featured-info CSS class
	oDivs 	= document.getElementsByTagName ( "div" );
	for ( d = 0;  d < oDivs.length;  d++ ) {
		// cl_name = oDivs[ d ].getAttribute ( “class” ); // does NOT work in IE
		cl_name = oDivs[ d ].className;
		if ( cl_name == "featured-info_bkgd" ) {
			oDivs[ d ].style.display 	= "none";
		}
	}
	if ( id ) 	document.getElementById ( 'featured-info_bkgd' +id ).style.display 	= 'block';
}