get a function of external file

Question

I am using jQuery and my js file thats calling a jquery function resides in totally different directory than jQuery is in. I need to call this function reloadPage like this from js file

reloadPage({param1:'First Parameter', param2:ID});

but it gives me an error

Line: 341
Error: Object doesn't support this property or method

Line 341 is reloadPage({param1:'First Parameter', param2:ID});. What can I do to run this function from outside the directory?

I tried

parent.reloadPage({param1:'First Parameter', param2:ID});

But that didnt work either.