Yep that would be the reason. Once the button is clicked the browser loads the target page. However the browser seems to "freezes" the page...

__________________
Peter Sinclair
http://www.motivationalmemo.com/
Motivational author and speaker, has created many powerful motivational tools that have been designed to empower your life. Thousands have already benefited from his books and ezines. And as Peter says, "When life requests an answer, shout 'YES!'"

Australia Website Designers