var win=null;
function NewWindow(mypage,myname,w,h,scroll,pos){
   if(pos=="center"){
    LeftPosition=(screen.width)?(screen.width-w)/2:100;
	TopPosition=(screen.height)?(screen.height-h)/2:100;
   }
   
   if(pos=="max"){
    LeftPosition=0;
	w = screen.width-16;
	TopPosition=0;
	h=screen.height-128;
   }
   
  var settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=yes';
  win=window.open(mypage,myname,settings);
  win.focus();
}