document ready function not called, of course.. alternatives?

document ready function not called, of course.. alternatives?

Hello,

I work with ASP.NET and have multiple aspx sites that all share the same sitemaster. 
Usually I would just have the site specific scripts in each aspx site (in a contentplaceholder that is in the head of the sitemaster) and than call the document ready function in these scripts... 
How would I do this using JQueryMobile? I don't really want to have all my scripts in the head of the sitemaster, I would like to load some script when some page is called..

any ideas?