var win=null;
          
	function NewWindow(mypage,myname,w,h,scroll,pos){
		if(pos=="random")
			{LeftPosition=(screen.availWidth)?Math.floor(Math.random()*(screen.availWidth-w)):50;TopPosition=(screen.availHeight)?Math.floor(Math.random()*((screen.availHeight-h)-75)):50;}

		if(pos=="center")
			{LeftPosition=(screen.availWidth)?(screen.availWidth-w)/2:50;TopPosition=(screen.availHeight)?(screen.availHeight-h)/2:50;}

		if(pos=="default")
			{LeftPosition=50;TopPosition=50}
		else if((pos!="center" && pos!="random" && pos!="default") || pos==null)
			{LeftPosition=0;TopPosition=20}

		settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no';

		win=window.open(mypage,myname,settings);
		if(win.focus)
		{win.focus();}
	  }

	  function CloseNewWin(){
	  if(win!=null && win.open)
		win.close()
	  }
          
     window.onfocus=CloseNewWin;