[TYPO3] Attempting concatenation - syntax issue?

[Helge Vad]

>..........there's something screwy with my faux-concatenation syntax, but I've used this before and it worked fine. I would be very 
>grateful for some insight.
This is just for the TS syntax :

   page.headerData.700 = TEXT
   page.headerData.700.value=<link rel="stylesheet" type="text/css" href="{$myStylesheet}" />

About the use of constants:

Using  {$myStylesheet} in your TS Setup depends on having myStylesheet  (no {$}) defined in your TS Config:

  myStylesheet = fileadmin/template/style.css

Best Helge Vad