Custom JSP taglib. This taglib lets you check out presence information for Yahoo Instant Messenger.

For example:
 

Tags are:

isOnline

Body tag executes own body if Yahoo IM user is online. Parameters are:

1) name Describes a name for user
2) proxyHost Optional parameter. Describes an address for your http proxy
3) proxyPort Optional parameter. Describes a port for your http proxy

isOffline

Body tag executes own body if Yahoo IM user is offline. Parameters are:

1) name Describes a name for user
2) proxyHost Optional parameter. Describes an address for your http proxy
3) proxyPort Optional parameter. Describes a port for your http proxy

isUnknown

Body tag executes own body if Yahoo IM user is unknown (invalid name). Parameters are:

1) name Describes a name for user
2) proxyHost Optional parameter. Describes an address for your http proxy
3) proxyPort Optional parameter. Describes a port for your http proxy

for downloading:

Library: yahootag.jar    Description: taglib.tld

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See also Coldtags suite - the largest collection of custom JSP tags.