var vwURL = 'http://www.volkswagen.com.au/vwcms_publish/etc/medialib/vwcms/virtualmaster/en_au/common/flexible_iframe.Par.0001.File.html';

document.write('<iframe style="width:1px; height:1px" src="'+vwURL+'" onload="" frameborder="0" name="vwiFrame" id="vwiFrame"></iframe>');
checkHeightandLoadiFrame();