self.status = ""
var ImgName = ""

if (document.images)						// only then the Image object exists
	{
	var number = 0;
	ImgNormal    = new Array()
	ImgActivated = new Array()
	for (number=0; number<4; number++)		// load the actual icons names in an array in memory
		{
		ImgNormal[number]        = new Image()
		ImgActivated[number]     = new Image()
		}
	
	ImgNormal[0].src    = "images/b0.png"
	ImgNormal[1].src    = "images/b1.png"
	ImgNormal[2].src    = "images/b2.png"
	ImgNormal[3].src    = "images/b3.png"
	ImgActivated[0].src = "images/b0a.png"			
	ImgActivated[1].src = "images/b1a.png"
	ImgActivated[2].src = "images/b2a.png"
	ImgActivated[3].src = "images/b3a.png"
	}

Helptext = new Array()
Helptext[0] = ""
Helptext[1] = ""
Helptext[2] = ""
Helptext[3] = ""

function toggleOver(n)
	{
	if (document.images)
		{
		ImgName = "image" + n
		document [ImgName].src = ImgActivated[n].src
		self.status= Helptext[n]
		}
	}

function toggleOut(n)
	{
	if (document.images)
		{
		ImgName = "image" + n
		document [ImgName].src = ImgNormal[n].src
		self.status = ""
		}
	}