var reminder="To request a copy of an image please consult the copyright holder. Click on Contact to find Seamark International's contact information.";

function IE(){
  if (event.button==2){
      alert(reminder);
      return false;
  }
}

function NS(e){
  if (document.layers||document.getElementById&&!document.all){
      if (e.which==2||e.which==3){
          alert(reminder);
          return false;
      }
  }
}

if (document.layers){
  document.captureEvents(Event.MOUSEDOWN);
  document.onmousedown=NS;
}

else if (document.all&&!document.getElementById){
  document.onmousedown=IE;
}

document.oncontextmenu=new Function("alert(reminder);return false")