if (document.images)
{	var yellowpages = new Image()
	yellowpages.src = "yellowpages1.gif"
	var yellowpages_a = new Image()
	yellowpages_a.src = "yellowpages2.gif"
}

function inact(imgName)
{   if (document.images)
	document[imgName].src = eval(imgName + '.src')
}

function act(imgName)
{   if (document.images)
	document[imgName].src = eval(imgName + '_a.src')
}