in the html page in a div tag has onlclick...:
onclick="<?php printTab()"?>

in an javascript function collection
function printTab()
{
    ajax call-> phpFunction()
    target->"targetdiv"
}

phpFunction():
{
print '<div><script type="text/javascript">alert("vatafaka");</script></div>';
}


result html:
...
<div id"targetdiv">
<script type="text/javascript">alert("vatafaka");</script>
</div>

and this is not running after this procedure