if (document.images) {
  	contacton = new Image();
	contacton.src = "images/contactbt2.gif";
	contactoff = new Image();
	contactoff.src = "images/contactbt.gif";

  	empoweron = new Image();
	empoweron.src = "images/empowerbt2.gif";
	empoweroff = new Image();
	empoweroff.src = "images/empowerbt.gif";

  	calendaron = new Image();
	calendaron.src = "images/calendarbt2.gif";
	calendaroff = new Image();
	calendaroff.src = "images/calendarbt.gif";
	
  	homeon = new Image();
	homeon.src = "images/homebt2.gif";
	homeoff = new Image();
	homeoff.src = "images/homebt.gif";		

  	empowerbackon = new Image();
	empowerbackon.src = "images/backbt2.gif";
	empowerbackoff = new Image();
	empowerbackoff.src = "images/backbt.gif";

  	healthon = new Image();
	healthon.src = "images/empowerHealthbt2.gif";
	healthoff = new Image();
	healthoff.src = "images/empowerHealthbt.gif";
	
  	wealthon = new Image();
	wealthon.src = "images/empowerWealthbt2.gif";
	wealthoff = new Image();
	wealthoff.src = "images/empowerWealthbt.gif";
	
  	educon = new Image();
	educon.src = "images/empowerEducbt2.gif";
	educoff = new Image();
	educoff.src = "images/empowerEducbt.gif";	
	}

  function rollon(imgName) {
	if (document.images) {
	imgOn = eval(imgName + "on.src");
	document[imgName].src = imgOn;
	}
  }

  function rolloff(imgName) {
	if (document.images) {
	imgOff = eval(imgName + "off.src");
	document[imgName].src = imgOff;
	}
  }