var standardImg=[];
var hoverImg=[];
var depressImg=[];

standardImg[0]=new Image();standardImg[0].src="../images/PreviousStandard.jpg";
standardImg[1]=new Image();standardImg[1].src="../images/NextStandard.jpg"

hoverImg[0]=new Image();hoverImg[0].src="../images/PreviousHover.jpg";
hoverImg[1]=new Image();hoverImg[1].src="../images/NextHover.jpg"

depressImg[0]=new Image();depressImg[0].src="../images/PreviousDepress.jpg";
depressImg[1]=new Image();depressImg[1].src="../images/NextDepress.jpg"

function changeImage(img,type)
{
//alert(img);
  switch(type){
    case "depress":document.images[img].src=depressImg[img-1].src;break;
    case "hover":document.images[img].src=hoverImg[img-1].src;break;
    case "standard":document.images[img].src=standardImg[img-1].src;break;
  }}