function showHideInfo( div_el ) {
	if( regions_el = getElement( "regions_for_info" ) ) regions_el.style.display = "none";
	if( where_to_buy = getElement( "where_to_buy_for_info" ) ) where_to_buy.style.display = "none";
	if( nearest_el = getElement( "nearest_for_info" ) ) nearest_el.style.display = "none";
	if( help_el = getElement( "help_for_info" ) ) help_el.style.display = "none";
	if( cur_el = getElement( div_el ) ) cur_el.style.display = "block";
	}