Jquery datepicker throwing too much recursion error

Im trying to modify the jquery datepicker with done button as clear button. but it is throwing too much recursion error... my code is,

function datePickerToCompareTwoFields(){
    var dformat = document.getElementById('dateFormat').value;
    $( '#popup_container, #popup_container1' ).datepicker({
        beforeShow: customRange,
        changeMonth: true,
        changeYear: true,
        closeText: 'Clear',
        dateFormat: dformat,
        numberOfMonths: 2,
        selectOtherMonths: true,
        showButtonPanel: true,
        showOtherMonths: true
    });
    $.datepicker._generateHTML_Old = $.datepicker._generateHTML;
    $.datepicker._generateHTML = function(inst) {
        res = this._generateHTML_Old(inst); 
        res = res.replace("_hideDatepicke开发者_JAVA百科r()","_clearDate('#"+inst.id+"')");
        return res;
    }
}