function showInfo( refId ) {
	$( "div#ri_" + refId ).show();
	$( "div#referenceInfoBG" ).fadeIn( 100 );
	// needed for opacity in ie
	$( "div#referenceInfoBG" ).animate({ opacity: 0.85 }, 300 );	
	$( "div#referenceInfo" ).fadeIn( 300 );
}

function closeInfo() {
	$( "div#referenceInfoBG" ).fadeOut( 300 );
	$( "div#referenceInfo" ).fadeOut( 300 );	
	// alle infos schließen
	$( "div#ri_kika_team" ).hide();
	$( "div#ri_kika_baumhaus" ).hide();
	$( "div#ri_bs_studio" ).hide();
	$( "div#ri_dmi_fashionday" ).hide();
	$( "div#ri_dmi_itex" ).hide();
	$( "div#ri_singa_web" ).hide();
	$( "div#ri_konzeptstudie" ).hide();
}