var myimages = new Array();
	
	myimages['menu1u'] = new Image(127,25); 
	myimages['menu1u'].src="/images/menu_ourpractice_up.jpg"; 
	myimages['menu2u'] = new Image(127,25); 
	myimages['menu2u'].src="/images/menu_news_up.jpg"; 
	myimages['menu3u'] = new Image(127,29); 
	myimages['menu3u'].src="/images/menu_services_up.jpg"; 
	myimages['menu4u'] = new Image(127,28); 
	myimages['menu4u'].src="/images/menu_patient_up.jpg"; 
	myimages['menu5u'] = new Image(127,25); 
	myimages['menu5u'].src="/images/menu_contact_up.jpg"; 

	myimages['menu1d'] = new Image(127,25); 
	myimages['menu1d'].src="/images/menu_ourpractice_down.jpg"; 
	myimages['menu2d'] = new Image(127,25); 
	myimages['menu2d'].src="/images/menu_news_down.jpg"; 
	myimages['menu3d'] = new Image(127,29); 
	myimages['menu3d'].src="/images/menu_services_down.jpg"; 
	myimages['menu4d'] = new Image(127,28); 
	myimages['menu4d'].src="/images/menu_patient_down.jpg"; 
	myimages['menu5d'] = new Image(127,25); 
	myimages['menu5d'].src="/images/menu_contact_down.jpg"; 

	

	function swapImage(which,img) {

		which.src=myimages[img].src;		

	}