限制“文本字段”以magento形式仅接受数字和最多10个数字

Question

here is a code : http://pastebin.com/qCNGSKRn to display telephone filed to enter telephone number.

i want to restrict above field to accept only numbers and also maximum 10 numbers to be entered. all special charactars and special symbols and white spaces should not allowed.

that field should not accept more than 10 digits.

please help me to find solution.

<div class="field">
                <label for="telephone" class="required"><em>*</em><?php echo $this->__('Telephone') ?></label>
                <div class="input-box">
                    <input type="text" name="telephone" value="<?php echo $this->escapeHtml($this->getAddress()->getTelephone()) ?>" title="<?php echo $this->__('Telephone') ?>" class="input-text  <?php echo $this->helper('customer/address')->getAttributeValidationClass('telephone') ?>" id="telephone" />
                </div>
            </div>

Answer 1

i have to use this in class " class="input-text validate-length maximum-length-10 minimum-length-10 validate-digits helper('customer/address')->getAttributeValidationClass('telephone') ?>"" https://magento.stackexchange.com/questions/56413/restrict-the-textfield-to-accept-only-digits-and-maximum-10-digits-in-magento

http://inchoo.net/magento/out-of-the-box-form-validation-in-magento/