Search help on POPUP_GET_VALUES

hi ,

i am using FM POPUP_GET_VALUES to get the input frm user , i have one field on this popup and i wish assign my own search help to it how can i do it with this fm.....

or if it is not possible with this fm then is there any other fm i can use to give a pop-up to user to input a value and to hav user-defined search help to the field on the pop-up.....

Regards,

Ashwinee Mali