> im trying severeal hours to tell httrack this:
> copy the hole site but leave this untouched:
> onClick="openPic('showpic.html?file ...blablabla')"

This isn't possible - the only solution would be to change 
the code into:
onClick="openPic('showpic.' + 'html?file ...blablabla')"

You can't make "selective" parsing - unless you code a 
specific plugin for that