Something

<form name="form1" method="post" action="admin.php?s=gallery&act=upload" enctype="multipart/form-data">
<input type="file" name="imagefile">
<br>
<input type="submit" name="submit" value="submit"> 
 </form> 
 
<?
if (isset($_GET['act'])) { 

if(isset( $_POST['submit'] ))
{
//If the Submitbutton was pressed do:

        
	move_uploaded_file($_FILES['imagefile']['tmp_name'], "..gallery/".$_FILES['imagefile']['name']) or die ("Could not copy"); 
	
		echo ""; 
    	echo "Name: ".$_FILES['imagefile']['name']; 
    	echo "Size: ".$_FILES['imagefile']['size']; 
    	echo "Type: ".$_FILES['imagefile']['type']; 
    	echo "Copy Done...."; 
    
} 
}
?>