function popup_win(mypage, myname, w, h, scroll) {
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 3;
	winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable';
	win = window.open(mypage, myname, winprops);
	
	if (parseInt(navigator.appVersion) >= 4){
		win.window.focus();
	}
}


function popup_max(mypage, myname, scroll) {
	var winl = 0;
	var wint = 0;
	var w = screen.availWidth;
	var h = screen.availHeight;
	winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable';
	win = window.open(mypage, "myname", winprops);

	win.window.resizeTo(screen.availWidth,screen.availHeight);

	if (parseInt(navigator.appVersion) >= 4){
		win.window.focus();
	}
}