Jquery Calender Control throws error if textbox is disabled

Hi,I am using jquery calender control.In my case the input textbox is
disables.so when I click on the calender icon,I am getting a
javascript error message.It's working fine if the textbox is enabled.
But I can't enable the textbox as the user can't enter the date into
textbox directly,He has to go through this calender if he wants to
pick the date.
Please help me.