All thing I need is a Function that check for is a term available for current taxonomy in a page.for example when I want to check is a page available in a post_type I use:
<?php if('my_taxonomy' == get_post_type() // DoSomeThing) ?>
now I want to use something like this:
<?php if(is_term_in_current_taxonomy('my_term')) ?>
finally founds what i want by myself , the conditional tags is :