imag = new Array ()
imag[0] = "images/nav/meetthestaff_off.jpg"
imag[1] = "images/nav/meetthestaff_on.jpg"
imag[2] = "images/nav/aboutouroffice_off.jpg"
imag[3] = "images/nav/aboutouroffice_on.jpg"
imag[4] = "images/nav/whyseeadentist_off.jpg"
imag[5] = "images/nav/whyseeadentist_on.jpg"
imag[6] = "images/nav/regularcheckups_off.jpg"
imag[7] = "images/nav/regularcheckups_on.jpg"
imag[8] = "images/nav/gumdisease_off.jpg"
imag[9] = "images/nav/gumdisease_on.jpg"
imag[10] = "images/nav/rootcanals_off.jpg"
imag[11] = "images/nav/rootcanals_on.jpg"
imag[12] = "images/nav/smilegallery_off.jpg"
imag[13] = "images/nav/smilegallery_on.jpg"
imag[14] = "images/nav/cosmeticdentistry_off.jpg"
imag[15] = "images/nav/cosmeticdentistry_on.jpg"
imag[16] = "images/nav/teethwhitening_off.jpg"
imag[17] = "images/nav/teethwhitening_on.jpg"
imag[18] = "images/nav/invisalign_off.jpg"
imag[19] = "images/nav/invisalign_on.jpg"
imag[20] = "images/nav/beforeandafter_off.jpg"
imag[21] = "images/nav/beforeandafter_on.jpg"
imag[22] = "images/nav/contactus_off.jpg"
imag[23] = "images/nav/contactus_on.jpg"
imag[24] = "images/nav/home_off.jpg"
imag[25] = "images/nav/home_on.jpg"
imag[26] = "images/nav/subnav/officepolicies_off.jpg"
imag[27] = "images/nav/subnav/officepolicies_on.jpg"
imag[28] = "images/nav/subnav/privacypolicy_off.jpg"
imag[29] = "images/nav/subnav/privacypolicy_on.jpg"
imag[30] = "images/nav/subnav/rateyoursmile_off.jpg"
imag[31] = "images/nav/subnav/rateyoursmile_on.jpg"
imag[32] = "images/nav/subnav/commentform_off.jpg"
imag[33] = "images/nav/subnav/commentform_on.jpg"
imag[34] = "images/nav/subnav/referafriend_off.jpg"
imag[35] = "images/nav/subnav/referafriend_on.jpg"
imag[40] = "images/nav/resources_off.jpg"
imag[41] = "images/nav/resources_on.jpg"

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]
        }