<A>

Statement	Description
`<A`
`LABEL=key_label`	The label that appears on the ACCEPT key when the link is selected. `key_label` should be five characters or shorter. The `LABEL` option is optional. The default label for the ACCEPT key is OK.
`ACCESSKEY=key_num`	A number (0-9) that appears on the left side of the screen next to the link. If the user presses the corresponding key on the phone keypad, the phone executes the task defined by the link. It is recommended that you number the links in the order in which they appear.
`TASK=task_type`	The task to execute. Possible values are: `GO`: requests the URL specified by the `DEST` option. `GOSUB`: requests the URL specified by the `DEST` option, spawning a nested activity. `RETURN`: returns from a nested activity to the previous activity. `CANCEL`: cancels the current nested activity, returning to the previous activity. `PREV`: displays the previous card in the activity history. If the current card is the first card, `PREV` has the same effect as `CANCEL`. `CALL`: places a phone call to the number specified by the `number` option. `NOOP`: does nothing. See the table below for more detailed descriptions of these tasks and the options you can use with them.
`DEST=dest_url`	The URL to request in `GO` and `GOSUB` tasks. If the current activity is nested and the task is a `RETURN or CANCEL` task, `DEST` specifies a URL to request upon returning to the calling activity. However, if the calling activity does not designate the current activity as "friendly," the UP.Phone ignores the `DEST` option. The `DEST` option overrides the `NEXT` or `CANCEL` options of the calling activity.
`REL=NEXT`	Instructs the phone to prefetch the URL specified by the `DEST` option. The phone loads and caches the URL while the user is viewing the current card. If the user invokes the action (requesting the URL) the phone can retrieve the URL from the cache instead of requesting it from the UP.Link server. This gives the user a perception of enhanced performance. There is no guarantee that the phone will be able to prefetch the specified URL. For example, if the phone is on a circuit-switched network and the circuit is down, the phone will not open a circuit. If the phone fails to execute the prefetch, it does not retry it. If you specify the `REL=NEXT` option, the URL is added to the end of the phone's cache. If the user does not request the URL soon after the phone caches it, the phone pushes it out of the cache, and caches other data instead. If several tasks on a card specify the `REL=NEXT` option, the phone prefetches the URLs in the order in which the tasks are listed.
`METHOD=get_or_post`	If the DEST option specifies a URL, the method used to request the URL: `GET` or `POST`. If you do not specify this option, the default, `GET`, is used. It is strongly recommended that you use the `POST` method instead of the `GET` method. Using the `POST` method ensures that the UP.Link server will properly transcode data from the phone to the correct character set for your application (as specified by the HTTP headers set by your application). For more information on character sets and HTTP headers, see the UP.SDK Developer's Guide.
`POSTDATA=data`	The data to post if the `METHOD` option specifies `POST`. If the data contains multiple arguments, delimit the arguments with ampersands (`&`).
`ACCEPT-CHARSET=ch_set`	Specifies the character set which the HDML application expects data returned from the phone to use. It can specify character set names, such as the following: `utf-8 us-ascii iso-8859-1 shift-jis` For a complete list of character set names, see Supporting multiple character sets If you do not specify the `ACCEPT-CHARSET` option, the character set defaults to the character set of the deck (as specified by the deck's HTTP headers). For more information on character sets and HTTP headers, see the UP.SDK Developer's Guide.
`VARS=var_pairs`	A list of variables to set for the current activity (if the task is `GO`) or nested activity (if the task is `GOSUB`). The variable list must be in query-string format, for example: `var1=value1&var2=value2` Variable values must be escaped according to URL escaping conventions. The phone unescapes the `VARS` option before setting the value of the variables.
`RECEIVE=var_list`	A semicolon-delimited list of variables to which the phone stores the return values from a `GOSUB` task. The phone stores return values according to ordinal position. For example, if you specify the following option: `receive=var1;var2` the phone stores the first return value to `var1` and the second return values to `var2`. If you want to skip a return value, you must include a semicolon as a placeholder. For example, to ignore the first return value and store the second return value to `var2`, you specify the following option: `receive=;var2`
`RETVALS=val_list`	A semicolon-delimited list of values that an activity invoked with `GOSUB` returns to the invoking activity. The `RETVALS` option is allowed only with the `RETURN` task. The values must be escaped according to URL escaping conventions.
`NEXT=next_url`	The URL to request after a nested activity returns. If the `FRIEND` option in the `GOSUB` task is set to `TRUE`, the `NEXT` option can be overridden by the `DEST` option in the nested activity's `RETURN` task.
`CANCEL=cancel_url`	The URL to request after a nested activity invoked by a `GOSUB` task cancels. If the `FRIEND` option in the `GOSUB` task is set to `TRUE`, the `CANCEL` option can be overridden by the `DEST` option in the nested activity's `CANCEL` task.
`FRIEND=boolean`	A boolean value specifying whether the nested activity specified in a `GOSUB` task is "friendly." A friendly nested activity can use the `DEST` and `CLEAR` options in `RETURN` and `CANCEL` tasks and override the `NEXT` and `CANCEL` options of the calling task. To indicate the nested activity is friendly, specify `TRUE`. The default is `FALSE`.
`SENDREFERER=boolean`	A boolean value specifying whether the UP.Browser should provide the URL of the current deck when requesting the URL specified by the `DEST` or `NEXT` options. If you set it to `TRUE`, the UP.Browser specifies the deck's URL in the "Referer" header of the request. The UP.Browser attempts to use the shortest possible relative URL in the "Referer" header if possible. The default value is `FALSE`.
`CLEAR=boolean`	A boolean value specifying whether a `RETURN` or `CANCEL` task from a nested activity unsets all the calling activity's variables. To unset the calling activity's variables, specify `TRUE`. The default is `FALSE`. The phone ignores the `CLEAR` option unless the calling activity specifies that the current activity is "friendly."
`NUMBER=number`	For a `CALL` task, the phone number to call.
`>`
`text`	The text for the link. The phone displays this text in square brackets ( `[ ]` ).
`</A>`