function openCenter(mypage,myname,w,h,scroll,resize)
{
	leftpos = (screen.width) ? (screen.width-w)/2 : 0;
	toppo = (screen.height) ? (screen.height-h)/2 : 0;
	settings = 'height=' + h + ',width=' + w + ',top=' + toppo + ',left=' + leftpos + ',scrollbars=' + scroll + ',resizable=' + resize
	mywin = window.open(mypage,myname,settings)
}