reducing all js file request to one js file .

reducing all js file request to one js file .

hey guys i was just checking my page speed over at google pagespeed here.  and came to know that for each js file ofcourse there is an additonal request send , now apart from concatinating all the js files into one to reduce the number of request , is there any other way , plugin etc that can be used to reduce the number of request of all my js files to one request ? 

is there a way to do that ? 

i know this question is more appropriate for a webmaster forum , but i taught it would have a js solution and there might be a js plugin already that does what i am looking for and hence i am posting here. 

Thank you. 

Gautam.