function open_win(popup)
   {
   window.open(popup,'_blank','width=600,height=400,menubar=0,status=0,location=0,toolbar=0,scrollbars=0,resizable=0,left=100, top=100');
   }

function open_download(popup)
   {
   window.open(popup,'_blank','width=660,height=600,menubar=0,status=1,location=0,toolbar=0,scrollbars=1,resizable=1,left=100, top=100');
   }