display over form

[greg]

hi

i have a form that permit users to send a message (like mails) and add
attachments.
When a user adds an attachment, i display a little message like "please wait
while loading ..."

my problem is that this message doesn't appear over the input elements of
the form.

how could i resolve that ?

thanks in advance
Greg

for info, the source for the little message
function attente_transfert()
{
promptbox = document.createElement('div');
promptbox.setAttribute ('id' , 'prompt')
document.getElementsByTagName('body')[0].appendChild(promptbox)
promptbox = eval("document.getElementById('prompt').style")
promptbox.position = 'absolute'
promptbox.top = 200;
promptbox.left = 450;
promptbox.width = 200
promptbox.border = 'outset 3 #ffffff'
document.getElementById('prompt').innerHTML = "<table width=100%
bgcolor=#F0F0F0 align=center><tr align=center><td><br><h3>Veuillez
Patienter</h3><img src=\"/images/patienter.gif\"><h3>Transfert en
cours</h3></td></tr></table>"
}