[jQuery] fire sharethis method after page loads completly

[The Phenom]

Hi All,
            I am facing a performance issue while using sharethis
plugin. To enhance the performance I need to call sharethis method
once the pageloads completely. How do I exceute a sharethis script
after the page load or How to fire a ajax method when page load is
completed.

Any directions to solve this issue will be really helpful. Thanks in
advance

-Suresh