function show_description(id){
	if (document.getElementById(id).className=="mf_description_visible"){
		document.getElementById(id).className="mf_description_invisible";
	} else document.getElementById(id).className="mf_description_visible";
}
function expand_all(){
	$('div.mf_description_invisible').removeClass('mf_description_invisible').addClass('mf_description_visible');
}
function collaps_all(){
	$('div.mf_description_visible').removeClass('mf_description_visible').addClass('mf_description_invisible');
}

/* Product page - marketing feature description displaying */
function show_mf_description(_id, _link_id){
	_id="#"+_id;
	$('div.feature_description_visible').removeClass('feature_description_visible').addClass('feature_description');
	$(_id).removeClass('feature_description').addClass('feature_description_visible');
	$('li.active').removeClass('active');
	_link_id="#"+_link_id;
	$(_link_id).addClass('active');
}
/* News page - displaying news published not in the current year */
function show_news(year){

	_id = "tbody#id"+year;
	if ($(_id).hasClass('hidden_news'))
	{
		$(_id).removeClass('hidden_news');
	} else $(_id).addClass('hidden_news');
}