Hey Dave,

Yes, based on the last code snippet for you referenced post, you would need a property on your document type with an alias of randomImage of data type media picker. By the looks of the code, it is expecting you to choose a folder.

In terms of your macro code in your template, you shouldn't need the randomImage attribute as this is retreived from the document type.

Matt

Are you using Umbraco 4.5?, the snippet on the other page isnt gonna work since the xml schema has changed.

Yes, I am using 4.5.  Is there any examples or other posts that I should refer to?

I don't know. I can help you with an exemple tho.

This generates a random background from an media folder. Based on the Folder Node ID
*for this script to work the images must be upload as images, not as a file.

<xsl:variable name="folderNodeID" select="1072"/>
<xsl:variable name="randomImageNumber" select="round( Exslt.ExsltMath:random() * (count(umbraco.library:GetMedia($folderNodeID, 1)/Folder/Image) -2 ) + 1 )"/>
<div id="yourID" style="background-image:url({umbraco.library:GetMedia($folderNodeID, 1)/Folder/Image[$randomImageNumber]/umbracoFile});"></div>
  

Niels,

Thanks for the reply,

The solution posted works except that I only have three images to randomly select. The randomization returns no image fairly often, so it's not quite reliable.

Any thoughts?

Bump

Since upgrading the site to 4.5.2, the randomization isn't working correctly anymore, there frequency of no image coming back is now a significant problem:

Here is the current XSLT:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xsl:stylesheet [
  <!ENTITY nbsp "&#x00A0;">
]>
<xsl:stylesheet
  version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:msxml="urn:schemas-microsoft-com:xslt"
  xmlns:umbraco.library="urn:umbraco.library" xmlns:Exslt.ExsltCommon="urn:Exslt.ExsltCommon" xmlns:Exslt.ExsltDatesAndTimes="urn:Exslt.ExsltDatesAndTimes" xmlns:Exslt.ExsltMath="urn:Exslt.ExsltMath" xmlns:Exslt.ExsltRegularExpressions="urn:Exslt.ExsltRegularExpressions" xmlns:Exslt.ExsltStrings="urn:Exslt.ExsltStrings" xmlns:Exslt.ExsltSets="urn:Exslt.ExsltSets"
  exclude-result-prefixes="msxml
 umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes 
Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings 
Exslt.ExsltSets ">

  <xsl:output method="xml" omit-xml-declaration="yes"/>
  <xsl:param name="currentPage"/>
  <xsl:variable name="folderNodeID" select="/macro/randomImage"/>
  <xsl:variable name="debug" select="0"/>

  <xsl:template match="/">

    <xsl:if test="$debug=1">
      <xsl:comment>
        folderNodeID <xsl:value-of select="$folderNodeID"/>        
      </xsl:comment>
    </xsl:if>


    <xsl:choose>
      <xsl:when test="$folderNodeID &gt; 0">
        <xsl:variable name="randomImageNumber" select="ceiling( Exslt.ExsltMath:random() * (count(umbraco.library:GetMedia($folderNodeID, 1)/Folder/Image) ) )"/>
        <xsl:choose>
          <xsl:when test="$randomImageNumber &gt; 0">
            <img src="{umbraco.library:GetMedia($folderNodeID, 1)/Folder/Image[$randomImageNumber]/umbracoFile}" />  
          </xsl:when>
          <xsl:otherwise>
            <xsl:comment>folderNodeId lt= 0</xsl:comment>
            <xsl:call-template name="drawFromDefault" />
          </xsl:otherwise>
        </xsl:choose>

      </xsl:when>
      <xsl:otherwise>
        <xsl:comment>
          Folder Id was not provided.
        </xsl:comment>
        <xsl:call-template name="drawFromDefault" />
      </xsl:otherwise>
    </xsl:choose>
  </xsl:template>

  <xsl:template name="drawFromDefault">
    <xsl:variable name="folderNodeID" select="1216"/>
    <xsl:if test="$debug=1">
      <xsl:comment>
        using default folderNodeID <xsl:value-of select="$folderNodeID"/>        
      </xsl:comment>
    </xsl:if>
    <xsl:variable name="randomImageNumber" select="ceiling( Exslt.ExsltMath:random() * (count(umbraco.library:GetMedia($folderNodeID, 1)/Folder/Image) ) )"/>
    <xsl:if test="$randomImageNumber &gt; 0">
      <img src="{umbraco.library:GetMedia($folderNodeID, 1)/Folder/Image[$randomImageNumber]/umbracoFile}" />
    </xsl:if>
  </xsl:template>
</xsl:stylesheet>

Can anyone see what the issue is here?

is working on a reply...