Compression of Javascript file causes a javascript error

[appadmisy]

I have two JavaScript file (login.js and inter.js) in my default.asp page and some script inside script tag.Inside script tag i have i have one function.\[code\]function FnSubmit(){ var obj ="any string"; fntrim(obj);}\[/code\]This fntrim function is define in inter.js file. So when i enable iis compression it is giving me error that fntrim is undefinedBut when i disable the compression it is working fine.Could any one tell me why it is happening.Thanks in advance.