function openInfo()
{  
	var Left=(window.screen.width/4);
	var Top=(window.screen.height/4);
	var Configuration="scrollbars=yes, toolbar=no, menubar=no, location=no, directories=no, status=no, resizeable=no, width=550, height=500, left=" + Left + ", top=" + Top;
	window.open("informations.aspx","guestbook",Configuration);
}
function openIA()
{  
	var Left=(window.screen.width/4);
	var Top=(window.screen.height/4);
	var Configuration="scrollbars=yes, toolbar=no, menubar=no, location=no, directories=no, status=no, resizeable=no, width=450, height=410, left=" + Left + ", top=" + Top;
	window.open("MM_IA.aspx","guestbook",Configuration);
}