function doPopup(mypage,w,h){
	var winl = (screen.width-w)/2;
	var wint = (screen.height-h)/2;
	var settings ='height='+h+',';
	settings +='width='+w+',';
	settings +='top='+wint+',';
	settings +='left='+winl+',';
	settings +='scrollbars=no,';
	settings +='resizable=no';
	win=window.open(mypage,'',settings);
	if(parseInt(navigator.appVersion) >= 4){win.window.focus();}
}//doPopup