Urgent help needed

[Santosh]

Hi,
I have a mobile form. I am calling a device specific
javascript function to submit the form but before submit i
wud like to set some value in hidden control and access
this value in the page load.
1. I used mobile textbox control but it does not have
borderstyle attribute so i cannot make it invisible????
2. I used asp textbox control in content template but i am
not able to access its value in page_load by
Request.Form??????
3. I tried to use plain <INPUT type=hidden> and this also
the same as point 2.
4. If above is not possible, can i set session variables
in javascript??????
5. Any other way?????
Santosh