This plugin display a calendar that links to days containing blog items, which similar to the calendar functionality Movable Type and Radio Userland provide.
Copy the code from above link and save it to NP_Calendar.php
Upload the NP_Calendar.php file into the nucleus plugin directory
Install the plugin from the plugin admin menu
Modify the plugin options
Include <%Calendar%> in your skins where you want the blog item calendar to appear.
The plugin can be called in an alternative way:
<%Plugin(Calendar, cat, myblog)%>
cat: either all or limited, “all” shows calendar for all categories, “limited” will shows calendar for only the current category
myblog: short name of the blog to be display, allow one to display a calendar for another blog other than the current blog.
To customize the output, please add similar code to the CSS file
table.calendar {
font-size: small;
color: black;
}
tr.calendardateheaders {
font-size: small;
color: red;
}
td.days {
text-align: center;
}
td.today {
text-align: center;
color: green;
background-color: whitesmoke;
}
v0.2: initial plugin
v0.21: added doTemplateVar
v0.5: - moved table summary to constructor
- date headers now created according to locale
v0.51: fixed: calender was not limited to blog
v0.6: using options now instead of instance variables to keep options
v0.7: dates with future/draft posts are no longer linked
v0.71: last table cell was missing
v0.72: links to previous/next month added (by Roel)
Fixed: “Passing locale category name as string is deprecated” by removing two quotes

v0.73: jhoover fixed the bug that appeared in the monthly archives
(showing December 1999 everywhere) when using Fancy
URL‘s
v0.75: short_open_tags: <? → <?php (karma)
v0.76: use sql_table, add supportsFeature, add today highlight, merged w/ XE
v0.77: added option to change prev/next month link label
added option to change day label
added option to start week on Sun (integrated changes from Hop)
v0.78: added straight calendar mode (no links)
v0.78a: merged gRegor’s category change
v0.79: fixed typo
v0.79a: disabled prev/next month link if SC mode is enabled
v0.80: fixed today highlight bug
v0.81: included hcgtv’s improvement
v0.81a: typo
v0.81b: fixed bug reported by Pieter
v0.82: fixed blogname parameter bug reported by Pieter
v0.83: no link to future month
v0.84: add delim between prev/next month (by cs42)
v0.85: added year validation for “today” td
NP_Calendar version 0.85 works with Nucleus CMS version 3.31 - 2007-10-27 ftruscot