function resizeImage(imgID,pcnt) {

var image=document.getElementById(imgID);
widthOld=image.width;
image.style.height=document.body.clientHeight * pcnt;
widthNew=image.width;
percentage=widthNew/widthOld;
height=image.height;
}

function change(imgID,src) {

document.getElementById(imgID).src=src;
}

function move(contID,imgID) {

var image=document.getElementById(imgID);
width=image.width;
var container=document.getElementById(contID);
container.style.position="relative";
container.style.left = 0 + ((785 - width)/2.0);
}