var PictopiaPaperId = 273;     // You MUST replace your pictopia id!

function goPtp(artNo, title, imageUrl, caption) {           
 
var loc = "http://pictopia.com/perl/ptp?provider_id="
				+ PictopiaPaperId
				+ "&photo_name="+ artNo 
				+ "&title=" + title
				+ "&embedded=y"
				+ "&thumbnail_url=" + escape(imageUrl)
				+ "&fs_url=" + escape(imageUrl)
				+ (typeof(caption) != 'undefined' ? "&m_caption="+ escape(caption) : '');
var  PictopiaWin = window.open(loc, 'ptp');
     PictopiaWin.focus();
}