function openWin(url) 
{ 
  aWindow = window.open(url, "thewindow", "top=50,left=50,toolbar=0,location=0,directories=0,status=0,menubar=0,resizable=1,width=400,height=500"); 
  aWindow.focus(); 
}

function openBigWin(url) 
{ 
  aWindow = window.open(url, "thebigwindow", "top=50,left=50,scrollbars=1,toolbar=0,location=0,directories=0,status=0,menubar=0,resizable=1,width=800,height=600"); 
  aWindow.focus(); 
}