Spring form input can't be disable

I want to disable a with the attribute disabled but it's not working.

<td class="value">
                <sec:authorize access="hasAnyRole('ROLE_EDIT_DEVICE_INSTALL_DATE')">
                    <form:input path="installDt"  maxlength="10" size="10"  cssClass="installDatePicker" /> 
                    <form:errors path="installDt" cssClass="errormsg" />
                </sec:authorize>
                <sec:authorize access="!hasAnyRole('ROLE_EDIT_DEVICE_INSTALL_DATE')">
                    <form:input path="installDt"  maxlength="10" size="10"  cssClass="installDatePicker" disabled="disabled" /> 
                    <form:errors path="installDt" cssClass="errormsg" />
                </sec:authorize>  
</td>

Does anybody have any idea to solve it ?