[아이폰]폼 텍스트 전용키보드 제어

참고 : http://stackoverflow.com/questions/593245/iphone-web-applications-and-specific-input-types

소스코드
Text: <input type="text" /> <!-- display a standard keyboard --> <br />
Telephone: <input type="tel" /> <!-- display a telephone keypad --> <br />
URL: <input type="url" /> <!-- display a URL keyboard --> <br />
Email: <input type="email" /> <!-- display an email keyboard --> <br />
Zip Code: <input type="text" pattern="[0-9]*" /> <!-- display a numeric keyboard --><br />