function swaponhome()
 {
      document.btnhome.src="images/btn-home-on.gif";

 }
function swapoffhome()
 {
      document.btnhome.src="images/btn-home.gif";

 }

function swaponviewcart()
 {
      document.btnviewcart.src="images/btn-viewcart-on.gif";

 }
function swapoffviewcart()
 {
      document.btnviewcart.src="images/btn-viewcart.gif";

 }

function swaponaskartist()
 {
      document.btnaskartist.src="images/btn-askartist-on.gif";

 }
function swapoffaskartist()
 {
      document.btnaskartist.src="images/btn-askartist.gif";

 }

function swaponclose()
 {
      document.btnclose.src="images/btn-close-on.gif";

 }
function swapoffclose()
 {
      document.btnclose.src="images/btn-close.gif";

 }

function swapon8x10()
 {
      document.btn8x10.src="images/btn-order8x10-on.gif";

 }
function swapoff8x10()
 {
      document.btn8x10.src="images/btn-order8x10.gif";

 }

function swapon14x18()
 {
      document.btn14x18.src="images/btn-order14x18-on.gif";

 }
function swapoff14x18()
 {
      document.btn14x18.src="images/btn-order14x18.gif";

 }

function swapon11x14()
 {
      document.btn11x14.src="images/btn-order11x14-on.gif";

 }
function swapoff11x14()
 {
      document.btn11x14.src="images/btn-order11x14.gif";

 }

function swaponorderform()
 {
      document.btnorderform.src="images/btn-orderform-on.gif";

 }
function swapofforderform()
 {
      document.btnorderform.src="images/btn-orderform.gif";

 }

function swaponprev()
 {
      document.btnprev.src="images/btn-previouspage-on.gif";

 }
function swapoffprev()
 {
      document.btnprev.src="images/btn-previouspage.gif";

 }

function swaponalltocart()
 {
      document.btnalltocart.src="images/btn-addalltocart-on.gif";

 }
function swapoffalltocart()
 {
      document.btnalltocart.src="images/btn-addalltocart.gif";

 }

function swapon4()
 {
      document.btn4.src="images/btn-file-on.gif";

 }
function swapoff4()
 {
      document.btn4.src="images/btn-file.gif";

 }