//specify number of images as the last image number in the set
//so if the last image is da_side_10a.jpg var images will be 10
var images = 8;
var randNum = Math.round(Math.random() * images);

function ImgRotate() {
	if(document.images) {
		document.SideImg1.src = 'http://www.darkangel.ca/da-diary/images/rotate/da_side_' + randNum + 'a.jpg';
		document.SideImg2.src = 'http://www.darkangel.ca/da-diary/images/rotate/da_side_' + randNum + 'b.gif';
		document.SideImg3.src = 'http://www.darkangel.ca/da-diary/images/rotate/da_side_' + randNum + 'c.jpg';
		document.SideImg4.src = 'http://www.darkangel.ca/da-diary/images/rotate/da_side_' + randNum + 'd.jpg';
		document.SideImg5.src = 'http://www.darkangel.ca/da-diary/images/rotate/da_side_' + randNum + 'e.jpg';
	}
}