function NewWindow(mypage,myname,w,h,s){
	var win = null;
	if (w && h){
	if (w > screen.width){
		w = screen.width - '20';
		s = '1';
	}
	if (h > screen.height){
		h = screen.height - '50';
		s = '1';
	}
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	}
	else {
	LeftPosition = '0';
	TopPosition = '0';
	}
	
	settings ='height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition;
	if (s=='1') {settings = settings+',scrollbars=yes'} 
	win = window.open(mypage,myname,settings);
	if(win.window.focus){win.window.focus()}
}