MSIE7/8 alerts an error when a javascript tries to read several specific attibutes of a VML object's, like 'type', 'innerHTML', 'outerHTML' and 'title'.
When this page loads, all we are trying to do is "alert(document.getElementById('vmlobject').type); ".
Extensively discussed at: sitecrafting.com/blog/jquery-cufon-dont-mix/,
Reported to Sizzle: github.com/jquery/sizzle/issues/17,
Reported to jQuery: bugs.jquery.com/ticket/9807