d=document;
function g(id){
	return d.getElementById(id);
}

function showInfo(showHeaderId, showBlockId, hideHeaderId, hideBlockId){
	var showHeader = g(showHeaderId);
	var showBlock = g(showBlockId);
	var hideHeader = g(hideHeaderId);
	var hideBlock = g(hideBlockId);
	var displayBlock = g('price_comment_id');
	
	if(!cmnMatch_class(hideHeader, 'blue_border')) return;
	
	cmnSet_class(showHeader, 'blue_border', 'show_pseudo_link');
	cmnSet_class(showBlock, 'hidden', 'show_info');
	cmnSet_class(hideHeader, 'show_pseudo_link', 'blue_border');
	cmnSet_class(hideBlock, 'show_info', 'hidden');
	displayBlock.style.display = "block";
	
}