// JavaScript Document
var rand1 = 0;
var useRand = 0;

images = new Array;
iderma = new Array;
images[1] = new Image();
images[1].src = "images/image1_h.jpg";
iderma[1] = 'http://www.iderma.com/department/susan_posnick/';
images[2] = new Image();
images[2].src = "images/image5_h.jpg";
iderma[2] = 'http://www.iderma.com/product/neocutis_lumiere_bio-restorative_eye_cream/';
images[3] = new Image();
images[3].src = "images/image6_h.jpg";
iderma[3] = 'http://www.iderma.com/product/skinmedica_tns_recovery_complex/';
images[4] = new Image();
images[4].src = "images/image7_h.jpg";
iderma[4] = 'http://www.iderma.com/product/pumice_cleanser/';

function swapPic() {
var imgnum = images.length - 1;
do {
var randnum = Math.random();
rand1 = Math.round((imgnum - 1) * randnum) + 1;
} while (rand1 == useRand);
useRand = rand1;
document.randimg.src = images[useRand].src;
currurl = document.getElementById("skinproducturl");
currurl.href = iderma[useRand];
}