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====== <#If> ======

When the interpreter finds an If, it expects a boolean condition – for example "<#x> > 0", which means "the variable x contains a number that is greater than zero" – and evaluates that condition. If the condition is true, the content of the param "true" is returned, otherwise the content of the param "false" is returned.

==== Parameters ====

^ Name                                                      ^ Mandatory ^ Description ^     
| <html><span style="color:#008000">Condition</span></html> | Yes       | 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. |
| <html><span style="color:#008000">True</span></html>      | No        | The content (html text or template filename) to return if the condition evaluate to true |
| <html><span style="color:#008000">False</span></html>     | No        | The content (html text or template filename) to return if the condition evaluate to false |

==== Literal ====

**<#if condition="condition">**true result**<#endif>**\\ 
If the expression specified in condition is true, the contents of the <#if> tags will be output, otherwise nothing will be output.

**<#if condition="condition">**true result**<#elseif condition="condition">**true result**<#endif>**\\ 
Used in conjunction with <#if>, this allows a secondary condition to be checked and the true result to be output if the condition is met.

**<#if condition="condition">**true result**<#else>**false result**<#endif>**\\ 
Used in conjunction with <#if>, the false result will be output if the <#if> condition failed, and so did any <#elseif> checks.

==== Example ====

<code>

<#if condition="('<#page_title>' = '') and (<#url_PageNumber> > 1)" 
     true="the page title is empty and the page number is greater than 1"
     false="the page title is NOT empty or the page number is NOT greater than 1">

<#if condition="('#page_title' = '') and (#url_PageNumber = 1)">
  the page title is empty and the page number is equal to 1
<#else>
  the page title is NOT empty or the page number is NOT greater than 1
<#endif>

</code>
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