// JScript source code


    nav1_on = new Image(161,32)
    nav1_on.src  = "images/backbut1on.jpg"

    nav1_off = new Image(161,32)
    nav1_off.src  = "images/backbut1off.jpg"

    nav2_on = new Image(161,32)
    nav2_on.src  = "images/backbut2on.jpg"

    nav2_off = new Image(161,32)
    nav2_off.src  = "images/backbut2off.jpg"

    nav3_on = new Image(162,32)
    nav3_on.src  = "images/backbut3on.jpg"

    nav3_off = new Image(162,32)
    nav3_off.src  = "images/backbut3off.jpg"

    nav4_on = new Image(161,32)
    nav4_on.src  = "images/backbut4on.jpg"

    nav4_off = new Image(161,32)
    nav4_off.src  = "images/backbut4off.jpg"
       
    nav5_on = new Image(170,32)
    nav5_on.src  = "images/backbut5on.jpg"

    nav5_off = new Image(170,32)
    nav5_off.src  = "images/backbut5off.jpg"

    function switchimage(img, obj)
        {
	    document[img].src = eval(obj + ".src");
        }