ipad web application: How do I prevent the keyboard from popping up on jquery datepicker

I used a slightly modified version of Rob Osborne’s solution and it successfully prevented the keyboard from popping up on the iPad and iPhone.

$(".datePicker").datepicker({
    showOn: 'button',
    onClose: function(dateText, inst) 
    { 
        $(this).attr("disabled", false);
    },
    beforeShow: function(input, inst) 
    {
        $(this).attr("disabled", true);
    }
});