Hi,
in the form use the input type "file"
<input class="text_gruen" type="file" name="my_file">
in the processing script you can use the PHP buildt in functions 'is_uploaded_file' and
'move_uploaded_file'.
<?php
if (is_uploaded_file($my_file))
{
move_uploaded_file($my_file, "../your_path/your_file_name");
}
Hope I could help
Claudia