Mobile Web Development

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Nirav Mehta

You could use the tag in WML to program the left and right softkeys on
the mobile device. Programming softkeys is not supported in XHTML MP;
the alternative is to use accesskey attribute in the anchor tag () to specify
a key shortcut for a link.
WML also supports client-side scripting using WMLScript??”a language
similar to JavaScript. This is not supported in XHTML MP yet, but will come
in near future in the form of ECMA Script Mobile Profile (ECMP).
WML also supported client-side variables. This made it easier to process
form data, validate them on the client side, and to reuse user-filled data
across cards. This is not supported in XHTML MP.
With XHTML MP, you have to submit a form with a submit button. WML
allowed this on a link. WML also had a format attribute on the input
tag??”specifying the format in which input should be accepted. You need
to use CSS to achieve this with XHTML MP.
There are no timers in XHTML MP. This was a useful WML feature making
it easier to activate certain things based on a timer. You can achieve a similar
effect in XHTML MP using a meta refresh tag.
The WML events ontimer, onenterbackward, onenterforward, and onpick
are not available in XHTML MP.

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