// page popup
function new_window(name, url, left, top, width, height, toolbar, menubar, statusbar, scrollbar, resizable, location) 
{
  toolbar_str = toolbar ? 'yes' : 'no'; 
  menubar_str = menubar ? 'yes' : 'no'; 
  statusbar_str = statusbar ? 'yes' : 'no';
  scrollbar_str = scrollbar ? 'yes' : 'no';
  resizable_str = resizable ? 'yes' : 'no';
  location_str  = location  ? 'yes' : 'no'; 
  window.open(url, name, 'left='+left+',top='+top+',width='+width+',height='+height+',toolbar='+toolbar_str+',menubar='+menubar_str+',status='+statusbar_str+',scrollbars='+scrollbar_str+',resizable='+resizable_str+',location='+location_str); 
}