function open_win(value)
{
	var nav = navigator.appVersion.charAt(0);
	var nap = navigator.appName;
	var xx = screen.width / 2 - 500;
	var yy = screen.height / 2 - 400;
	window.open(value,'NewWin','resizable=no,width=800,height=600,status=no,location=no,toolbar=no,menubar=no,scrollbars=yes');
}