<!--
button_1a = new Image
button_1a.src = "images/button_1a.jpg"
button_2a = new Image
button_2a.src = "images/button_2a.jpg"
button_3a = new Image
button_3a.src = "images/button_3a.jpg"
button_4a = new Image
button_4a.src = "images/button_4a.jpg"
    	
button_1b = new Image
button_1b.src = "images/button_1b.jpg"
button_2b = new Image
button_2b.src = "images/button_2b.jpg"
button_3b = new Image
button_3b.src = "images/button_3b.jpg"
button_4b = new Image
button_4b.src = "images/button_4b.jpg"

menu_1a = new Image
menu_1a.src = "images/menu_1a.jpg"
menu_2a = new Image
menu_2a.src = "images/menu_2a.jpg"
menu_3a = new Image
menu_3a.src = "images/menu_3a.jpg"
menu_4a = new Image
menu_4a.src = "images/menu_4a.jpg"
menu_5a = new Image
menu_5a.src = "images/menu_5a.jpg"
    	
menu_1b = new Image
menu_1b.src = "images/menu_1b.jpg"
menu_2b = new Image
menu_2b.src = "images/menu_2b.jpg"
menu_3b = new Image
menu_3b.src = "images/menu_3b.jpg"
menu_4b = new Image
menu_4b.src = "images/menu_4b.jpg"
menu_5b = new Image
menu_5b.src = "images/menu_5b.jpg"

function img_a(imgName) {
	document.images[imgName].src = eval(imgName + "a.src")	
}

function img_b(imgName) {   		
	document.images[imgName].src = eval(imgName + "b.src")
}
//-->