var catalog = ''
	var rfx_page = "";
    var catalog_name = "";

	regEx = /catalog=([^&=]*)(&|$)?/
	m=regEx.exec(location.search);
	if (m) {
	  catalog = m[1];
	}


	regEx = /catalog_name=([^&=]*)(&|$)?/
	m=regEx.exec(location.search);
	if (m) {
	  catalog_name = m[1];
	}


	regEx = /firstpage=([^&=]*)(&|$)?/
	m=regEx.exec(location.search);
	if (m) {
	  rfx_page = m[1];
	}


	if (catalog == '1') {
		//if the catalog is embeded in the client site use 
		document.write ('<a href="virtualcatalog.html?catalog_name=' + catalog_name  + '&rfx_page=' + rfx_page + '">Back to catalog</a>');
		//else use this
		//document.write ('<a href="[Replace with the catalog url]/catalog_[client]/' + catalog_name  + '/?rfx_page=' + rfx_page + '">Back to catalog</a>');

	}