var formatW=format.replace(/x.*$/,"");
var formatH=format.replace(/^.*x/,"");
document.write('<iframe id="bx_content_iframe" src="http://bookrix.de/bx_content/bx_content.html?lang='+lang+'&bgcolor='+escape(bgcolor)+'&format='+format+'&pos='+pos+'&show='+show+'&pid='+pid+'" width="'+formatW+'" height="'+formatH+'" scrolling="no" marginheight="0" marginwidth="0" frameborder="0"></iframe>');