copy file from within a function

[Anon]

I am having a problem with my function moving a file, here is my code:

function uploadFile($username, $folder_name){
GLOBAL $img, $img_name, $img_description;
echo $username ."<BR>". $img ."<BR>". $img_name ."<BR>". $img_description;
$image_id = time();
// "../tmp/$username/$folder_name/$img_name"
$destination = "../tmp/$img_name";

if (!is_uploaded_file($img)) {
	echo( "<SPAN CLASS=\"black_normal\"><B><BR>&nbsp; Sorry I cannot find the file you are trying to upload</SPAN><BR><P>" );
	return FALSE;
} else {
	echo( "<SPAN CLASS=\"black_normal\"><BR>&nbsp; Copying <B>" . $img_name . "</B> from <B>" . $img . "</b> to <B>../tmp/</B></SPAN><BR>" );
	move_uploaded_file($img,$destination) or die("<SPAN CLASS=\"black_normal\"><BR>&nbsp; <B>Sorry, file copy failed.  Please try again.</B></SPAN><BR>");
};

};

When I put this code on a separate page without anything else but this function and an html page with and input file it works.....but as soon as I put it in my page with other functions it prints out weird image attributes.....

view here for code with no frills:
www.magform.com/upload.html

view same code here with frills and not working...but notice the missing variables:
www.magform.com/upload.php (just click on add to this folder)

Chad....