help me with the javascript code

[fafa7080]

hi all
i saw this javascript code but i can't see how this function is working
can someone please help?
daintree.com/accommodation/daintree-cape-tribulation-heritage-lodge/"]http://www.daintree.com/accommodation/daintree-cape-tribulation-heritage-lodge/
this is the link in which they used that script
after clicking on the book now option
one window is opening inside the page as u can see
how can i create such a menu exactly same as this?
i saw the source but could not understanding how exactly the code is working?

[rhoula]

It is possible to do that but you will need to do a lot of work to get it to work properly.
If you need my help please Pm me and I will do my best to better help you.
Thank you

[fafa7080]

It is possible to do that but you will need to do a lot of work to get it to work properly.
If you need my help please Pm me and I will do my best to better help you.
Thank you

any body else who wana help4 free?