[jQuery] clear file input field

[[EMAIL PROTECTED]]

I need to clear a file input field on onclick event

             $('#edit-header-image').val('');
but i dosent work for file input type but it works for text fields

also tried normal js type

document.getElementById('edit-header-image').value= '';

but it dosent clear the field in IE but it dose in firefox

i dont know what iam doing wrong , help me with this