DateTime Parameter in Crystal Report

hi,

in one of my crystal reports i'm invoking a procedure which has begin date and end date as parameters.when trying to run the report it's prompting for both date and time. my requirement is just to prompt for date and time is not required. the option of editing the parameter at the report level has been disabled since the parameters dierctly get invoked form procedure , in which i've declared the datatype as

samp_proc(p_begin_date date,p_end_date date,p_ref_cursor in out).

can someone help me on this.

Thanks,

Sailaja.k