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