Wordpress Pros? Onload command

I have a script that I want to place on the top of every page of a wordpress site. It requires the code in the Head, a onload command in the body and a piece of code in the area I want to place it.

How do I get the onload code into the body in WordPress?

Any help much appreciated

all you have to do is place it inside footer.php file of your template, right before </body> tag