if (document.images) {

	  var nav1n = new Image()
	  nav1n.src = "images/home1_up.gif"
	  var nav1a = new Image()
	  nav1a.src = "images/home1_over.gif"
	  
	   var nav2n = new Image()
	  nav2n.src = "images/services1_up.gif"
	  var nav2a = new Image()
	  nav2a.src = "images/services1_over.gif"
	  
	   var nav3n = new Image()
	  nav3n.src = "images/phys1_up.gif"
	  var nav3a = new Image()
	  nav3a.src = "images/phys1_over.gif"
	  
	   var nav4n = new Image()
	  nav4n.src = "images/contact1_up.gif"
	  var nav4a = new Image()
	  nav4a.src = "images/contact1_over.gif"
	 
	  var nav5n = new Image()
	  nav5n.src = "images/patient1_up.gif"
	  var nav5a = new Image()
	  nav5a.src = "images/patient1_over.gif"
	  
	   var nav6n = new Image()
	  nav6n.src = "images/forms1_up.gif"
	  var nav6a = new Image()
	  nav6a.src = "images/forms1_over.gif"
	  
	   var nav7n = new Image()
	  nav7n.src = "images/appt1_up.gif"
	  var nav7a = new Image()
	  nav7a.src = "images/appt1_over.gif"
	  
	  
	   var nav16n = new Image()
	  nav16n.src = "images/appt2_up.gif"
	  var nav16a = new Image()
	  nav16a.src = "images/appt2_over.gif"
}

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

	function inact(imgName) {

	 	if (document.images)
	  		document[imgName].src = eval(imgName + 'n.src')
	}

	// -->