publishdate - substring

[Alex Ivanovich]

This code was made by Dave in the forum (FNPRG now closed) .

It calculates the current month and the date of publication and shows a notice, the margin and 60 days (I think) .

I wanted to know if it is possible to reduce or increase the days, example 15, 30, 45 days.

The problem that I don't understand this part of the code


concat(substring(/data/@unformatteddate,1,6),'00')



This is the complete code


<!-- Gli albi in uscita questo mese e prossimo -->
<strong>Gli albi in uscita questo mese e prossimo</strong>
[ <strong><span style="color:red;"> ##CMD:COUNT:book,publishdate&gt;<xsl:value-of select="concat(substring(/data/@unformatteddate,1,6),'00')"/>@dateacquired=##</span></strong> ]<img class="index_image" src="new.gif"/>
<a href="BookList.xsl?publishdate&gt;{concat(substring(/data/@unformatteddate,1,6),'00')}@orderby=series,releaseno@xslparam:doctitle=Albi In Uscita questo Mese@dateacquired=" target="_blank"><xsl:text>Vedi</xsl:text></a>
<!-- Gli albi in uscita questo mese e prossimo -->



Thank you