Steps to Reproduce

1. visit the attached zul with iPad Safari

	<doublebox/>
	<doublebox format="#,###,##0.00"/>

2. click the 2nd doublebox

Current Result

ipad pops up a normal virtual keypad instead of a numeric one.

Expected Result

ipad pops up a numeric keypad like clicking the first double (without format attribute specified).

Debug Info

1. if you click the first doublebox, iPad will pop up a numeric keyboard.
2. such issue also happens on firefox
3. <intbox>, <decimalbox> also have such issue, please also fix other similar components like <longbox>.

Root Cause

the rendered dom, input's type is text
<input id="bFHP1" class="z-doublebox" value="" type="text" size="11">

Workaround

<doublebox xmlns:ca="client/attribute" ca:pattern="[0-9]*" format="#,###,##0.00"/>
Ref:
https://www.smashingmagazine.com/2015/05/form-inputs-browser-support-issue/