The file mutate_content.dynamic.php has this:
<script type="text/javascript" src="media/script/datefunctions.js"></script>
This code is at the bottom of the file:
<script type="text/javascript">
var cal1 = new calendar1(document.forms['mutate'].elements['pub_date'], document.getElementById("pub_date_show"));
cal1.path="<?php echo str_replace("index.php", "media/", $_SERVER["PHP_SELF"]); ?>";
cal1.year_scroll = true;
cal1.time_comp = true;
var cal2 = new calendar1(document.forms['mutate'].elements['unpub_date'], document.getElementById("unpub_date_show"));
cal2.path="<?php echo str_replace("index.php", "media/", $_SERVER["PHP_SELF"]); ?>";
cal2.year_scroll = true;
cal2.time_comp = true;
</script>
The actual code for the calendars for publishing documents, one for setting a date and the other for clearing a date:
<a onclick="documentDirty=false; cal1.popup();" onmouseover="window.status='<?php echo $_lang['select_date']; ?>'; return true;" onmouseout="window.status=''; return true;" style="cursor:pointer; cursor:hand"><img src="media/style/<?php echo $manager_theme ? "$manager_theme/":""; ?>images/icons/cal.gif" width="16" height="16" border="0" alt="<?php echo $_lang['select_date']; ?>" /></a>
<a onclick="document.mutate.pub_date.value=''; document.getElementById('pub_date_show').innerHTML='(<?php echo $_lang['not_set']?>)'; return true;" onmouseover="window.status='<?php echo $_lang['remove_date']?>'; return true;" onmouseout="window.status=''; return true;" style="cursor:pointer; cursor:hand"><img src="media/style/<?php echo $manager_theme ? "$manager_theme/":""; ?>images/icons/cal_nodate.gif" width="16" height="16" border="0" alt="<?php echo $_lang['remove_date']; ?>" /></a>
It’s all rather ugly; I’m sure there are nicer date picker scripts available now. But this is what the Manager still uses, and it works just fine.
☆ A M B ☆
MODX Staff
an, 
That being said thanks for looking into others. i will check them out.