var otb0 = new Image();
otb0.src = "graph/normabout.gif";
var ot0 = new Image();
ot0.src = "graph/normaout.gif";
var i0 = new Image();
i0.src = "graph/normain.gif";
var otb1 = new Image();
otb1.src = "graph/modbout.gif";
var ot1 = new Image();
ot1.src = "graph/modout.gif";
var i1 = new Image();
i1.src = "graph/modin.gif";
var otb2 = new Image();
otb2.src = "graph/tavolebout.gif";
var ot2 = new Image();
ot2.src = "graph/tavoleout.gif";
var i2 = new Image();
i2.src = "graph/tavolein.gif";
var otb3 = new Image();
otb3.src = "graph/lavoutb.gif";
var ot3 = new Image();
ot3.src = "graph/lavout.gif";
var i3 = new Image();
i3.src = "graph/lavin.gif";
var otb4 = new Image();
otb4.src = "graph/icibout.gif";
var ot4 = new Image();
ot4.src = "graph/iciout.gif";
var i4 = new Image();
i4.src = "graph/iciin.gif";
function change(n, stringa)
	{
   var men = new Image();
   document.images[n].src=stringa;
	}