var imageDirectory = '/images/nav/';
var imageOnFiles = new Array('heating_on.gif','cooling_on.gif','iaq_on.gif','thw_on.gif','renovation_on.gif','services_on.gif','sp_on.gif','faq_on.gif','links_on.gif','history_on.gif','cu_on.gif','privacy_on.gif','home_on.gif','rae_on.gif','ras_on.gif');
var imageOffFiles = new Array('heating_off.gif','cooling_off.gif','iaq_off.gif','thw_off.gif','renovation_off.gif','services_off.gif','sp_off.gif','faq_off.gif','links_off.gif','history_off.gif','cu_off.gif','privacy_off.gif','home_off.gif','rae_off.gif','ras_off.gif');
var imageTagNames = new Array('heating','cooling','iaq','thw','renovation','services','sp','faq','links','history','cu','privacy','home','rae','ras');

var imageDirectory;
var imageOn = new Array();
var imageOff = new Array();

function initRollovers()
{
	for (var i = 0; i < imageOnFiles.length; i++)
	{
		currentName = imageTagNames[i];
		imageOff[currentName] = new Image();
		imageOn[currentName] = new Image();
		imageOff[currentName].src = imageDirectory + imageOffFiles[i];
		imageOn[currentName].src = imageDirectory + imageOnFiles[i];
	}
}

function rollon(img)
{
	document.images[img].src = imageOn[img].src;
}

function rolloff(img)
{
	document.images[img].src = imageOff[img].src;
}