function Nextimage(parm1) {
	var imgElement = this;
	var nextslide = 102; //iniz
	var nextpreslide = 103; //iniz
	var currentLargeimg = document.getElementById("largeimg");
    currentslide = currentLargeimg.src.substring(currentLargeimg.src.length-7,currentLargeimg.src.length-4); // grab the current 3-digit page#
	nextslide = Number(currentslide)+1;
	nextpreslide = nextslide+1;
	if (nextslide >= 123) {
		nextslide=123; //stop at last slide	>= 123
	}
	currentLargeimg.src="images/loading.gif"; // show that we're loading (works in Safari) while we pull in the larger image
	currentLargeimg.src="photos/books/wedding_album_page_"+String(nextslide)+".jpg"; // 
	if (nextslide < 123) {
		document.getElementById("image0").src="photos/books/wedding_album_page_"+String(nextslide)+".jpg"; // 
		document.getElementById("image1").src="photos/books/wedding_album_page_"+String(nextpreslide)+".jpg"; // 
	}

}
function Previmage(parm1) {
	var imgElement = this;
	var prevslide = 102; //iniz
	var currentLargeimg = document.getElementById("largeimg");
    currentslide = currentLargeimg.src.substring(currentLargeimg.src.length-7,currentLargeimg.src.length-4); // grab the current 3-digit page#
	prevslide = Number(currentslide)-1;
	prevpreslide = prevslide-1;
	if (prevslide <= 102) {
		prevslide=102; //stop at last slide	
		prevpreslide=102; //stop at last slide too
	}
	currentLargeimg.src="images/loading.gif"; // show that we're loading (works in Safari) while we pull in the larger image
	currentLargeimg.src="photos/books/wedding_album_page_"+String(prevslide)+".jpg"; // test with hard-coded image
	if (prevslide > 102) {
		document.getElementById("image0").src="photos/books/wedding_album_page_"+String(prevpreslide)+".jpg"; // 
		document.getElementById("image1").src="photos/books/wedding_album_page_"+String(prevslide)+".jpg"; // 
	}
}