[TYPO3] Static Graphical Menu - not generated by Typo3

[Florian Schupp | former03]

i have a graphical navigation on my page which is not generated from 
typo3 but has hardcoded links.

now i want to have an active status in this menu, depending on the alias 
of the page. that means if let's say page:alias equals home, the marker
###NAVIMAGE_1### should be replaced with the image nav_0_active.gif if 
not, it should be nav_0.gif

i played around with TS "if" function, but did not figure it out.
please help.

  10.marks {

  	NAVIMAGE_1 = IMAGE
	NAVIMAGE_1.file = nav_0.gif

	pagealias = TEXT
	pagealias.file = page:alias

--->    HERE it should go
--->	if (pagealias == home) { NAVIMAGE_1 < nav_0_active.gif }

  }



thanks

Florian