function tauschen(x)
{
   if(x==1)
   {
       document.movie.src="intro_referenzen.swf"
   }
   if(x==2)
   {
       document.movie.src="intro_referenzen_01.swf"
   }
   if(x==3)
   {
       document.movie.src="intro_referenzen_01.swf"
   }
   if(x==4)
   {
       document.movie.src="intro_referenzen_01.swf"
   }
   if(x==5)
   {
       document.movie.src="intro_referenzen_01.swf"
   }
}