function openWin1()
   {myWin= open("harf.html", "displayWindow", "width=300, height=256, top=0, left=0, status=no, toolbar=no, menubar=no, scrollbars=no");}
   function openWin2()
   {myWin= open("instr/fotoharf.html", "displayWindow", "width=650, height=550, top=0, left=0, status=no, toolbar=no, menubar=no, scrollbars=yes");}
   function openWin3()
   {myWin= open("instr/fotoverro.html", "displayWindow", "width=650, height=550, top=0, left=0, status=no, toolbar=no, menubar=no, scrollbars=yes");}
   function openWin4()
   {myWin= open("instr/fotopan.html", "displayWindow", "width=650, height=550, top=0, left=0, status=no, toolbar=no, menubar=no, scrollbars=yes");}