function goPtp(artNo, title, imageUrl, caption) {   
	if (imageUrl.match(/\&Ref=/i)) {
		var ref = imageUrl.replace(/.*\&Ref=/,'');
      	ref = ref.replace(/\&.*/, '');
		artNo += '-' + ref;
	}
      var loc = "http://pictopia.com/perl/ptp?provider_id=151"
      	  + "&photo_name="+ artNo
              + "&title=" + title
              + "&embedded=y"
              + "&thumbnail_url=" + escape(imageUrl)
              + "&m_caption="+ escape(caption);
    	var  PictopiaWin = window.open(loc, 'ptp');
     	PictopiaWin.focus();
}