imag = new Array ()
     imag[0] = "images/nav/pl.gif"
     imag[1] = "images/nav/pl_on.gif"
	 imag[2] = "images/nav/home.gif"
     imag[3] = "images/nav/home_on.gif"
	 imag[4] = "images/nav/office.gif"
     imag[5] = "images/nav/office_on.gif"
	 imag[6] = "images/nav/ortho.gif"
     imag[7] = "images/nav/ortho_on.gif"
	 imag[8] = "images/nav/braces101.gif"
     imag[9] = "images/nav/braces101_on.gif"
	 imag[10] = "images/nav/before.gif"
     imag[11] = "images/nav/before_on.gif"
	 imag[12] = "images/nav/smilegallery.gif"
     imag[13] = "images/nav/smilegallery_on.gif"
	 imag[14] = "images/nav/gameroom.gif"
     imag[15] = "images/nav/gameroom_on.gif"
	 imag[16] = "images/nav/contact.gif"
     imag[17] = "images/nav/contact_on.gif"
	 imag[18] = "images/nav/team.gif"
     imag[19] = "images/nav/team_on.gif"
	 imag[20] = "images/nav/tour.gif"
     imag[21] = "images/nav/tour_on.gif"
	 imag[22] = "images/nav/policies.gif"
     imag[23] = "images/nav/policies_on.gif"
	 imag[24] = "images/nav/newsletter.gif"
     imag[25] = "images/nav/newsletter_on.gif"
     imag[26] = "images/nav/contests.gif"
     imag[27] = "images/nav/contests_on.gif"
	 imag[28] = "images/nav/children.gif"
     imag[29] = "images/nav/children_on.gif"
	 imag[30] = "images/nav/adults.gif"
     imag[31] = "images/nav/adults_on.gif"
	 imag[32] = "images/nav/faqs.gif"
     imag[33] = "images/nav/faqs_on.gif"
	 imag[34] = "images/nav/common.gif"
     imag[35] = "images/nav/common_on.gif"
	 imag[36] = "images/nav/dictionary.gif"
     imag[37] = "images/nav/dictionary_on.gif"
	 imag[38] = "images/nav/resources.gif"
     imag[39] = "images/nav/resources_on.gif"
	 imag[40] = "images/nav/braces.gif"
     imag[41] = "images/nav/braces_on.gif"
	 imag[42] = "images/nav/appliances.gif"
     imag[43] = "images/nav/appliances_on.gif"
	 imag[44] = "images/nav/invisalign.gif"
     imag[45] = "images/nav/invisalign_on.gif"
     imag[46] = "images/nav/diagram.gif"
     imag[47] = "images/nav/diagram_on.gif"
	 imag[48] = "images/nav/painter.gif"
     imag[49] = "images/nav/painter_on.gif"
	 imag[50] = "images/nav/video.gif"
     imag[51] = "images/nav/video_on.gif"
	 imag[52] = "images/nav/retainers.gif"
     imag[53] = "images/nav/retainers_on.gif"
	 imag[54] = "images/nav/care.gif"
     imag[55] = "images/nav/care_on.gif"
	 imag[56] = "images/nav/comment.gif"
     imag[57] = "images/nav/comment_on.gif"
	 imag[58] = "images/nav/friend.gif"
     imag[59] = "images/nav/friend_on.gif"
	 imag[60] = "images/nav/appointment.gif"
     imag[61] = "images/nav/appointment_on.gif"


function swtch(num, imgname){
                imgname.src = im[num].src
        }
                im = new Array()
                for (var i = 0; i < imag.length; i++){
                im[i] = new Image ()
                im[i].src = imag[i]
        }