pic1 = new Image(18,18);
pic1.src = "img/foto1.jpg";
pic2 = new Image(18,18);
pic2.src = "img/foto2.jpg";
pic3 = new Image(18,18);
pic3.src = "img/foto3.jpg";
pic4 = new Image(18,18);
pic4.src = "img/foto4.jpg";

picNumAtt = 1;
NMaxFoto = 4;

function replacePic(imgDocID,imgObjName) 
	{
	document.images[imgDocID].src = eval(imgObjName + ".src")
	}

function changePic() 
	{
	passa1 = "pic1";
	passa2 = "pic" + picNumAtt;
	replacePic(passa1, passa2);

	picNumAtt++
	
	if(picNumAtt > NMaxFoto)
		picNumAtt = 1;

	setTimeout("changePic();", 4000);
	}

function openInfoWind(fileName) 
	{
	msg=open(fileName,"","toolbar=no,scrollbars=yes,directories=no,menubar=no,width=580,height=500,resizable=no");
	}