[TYPO3] Menu utilizing newUntil field

[Tapio Markula]

Hi

I found
http://typo3.net/tsref/functions/if/

    1.
       ...
    2.
         30 = TEXT
    3.
         30.text = NEU!
    4.
         30.offset = 10,10
    5.
         30.if {
    6.
           value.data = date: U
    7.
           isLessThan.field = newUtil
    8.
           negate = 1
    9.
         }
   10.
I still doesn't understand the usage of if-stantements in TypoScript 
(they are the most difficult issue for me in TypoScript).

How to utilize for some menu newUntil field
value.data = date: U ?

I found somewhere CURRENT_DATE

value.data=CURRENT_DATE ?

Purpose to make a menu from all normal pages, which current date
is greater than field newUntil

Menu would be build on *last edited* menu

tt_content.menu.20.5 {
                 #wrap = <div class="csc-menu csc-menu-5">|</div>
		#special = updated
		special {
                         #mode = manual
                         limit = 1000 
                                     			maxAge = 3600*24*1000
		}
1=TMENU
1.if {
     value.data = date: U
     isLessThan.field = newUntil
     #negate = 1
NO.linkWrap = |
   }
}