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The purpose of the CaseOf is to allow the value of a variable or expression to control the flow of program execution via a multiway branch. The main reasons for using a CaseOf include improving clarity, by reducing otherwise repetitive coding

• expression - a boolean condition or a number (0 evaluate to false and all other numbers to true). Operators supported: + - * / ( ) OR AND. The tags in the condition are always evaluated before the condition is calculated
• statement_<a> - The content (html text or template filename) to return if the expression evaluate to <a>
• …
• statement_<n> - The content (html text or template filename) to return if the expression evaluate to <n>

<#caseof expression="<#url_PageNumber>" 
         statement_0="their is no page"
         statement_1="their is at least 1 page"
         default="their is at least <#url_PageNumber> pages">