// The following functions are used with display style #2 = photo album pro.
function imgPreload(a) {
	if(!document.images) return;
	var temp = new Image();
	temp.src = a;
	return	a;
}
function grab_imgs() {
	var f = document.forms[0].elements;
	var imgs = new Array();
	for( i=0; i<f.length; i++ ) {
		imgs[imgs.length] = f[i].value;
	}
	return imgs;
}
function find_img() {
	var imgs = grab_imgs();
	var temp = document.current.image.value;
	for( i=0; i<imgs.length; i++ )
		if( imgs[i].indexOf(temp)!=-1 ) return i;
	return -1;
}
function prev() {
	var imgs = grab_imgs();
	var current = find_img();
	var p = current;
	if( p==0 ) p = imgs.length;
	if( p<0 ) p = 1;
	p -= 1;
	swap_layers( 'large' + get_proof(imgs[current]), 'large' + get_proof(imgs[p]) );
	hide( 'original' );
	swap_layers( 'proof' + get_proof(imgs[current]), 'proof' + get_proof(imgs[p]) );
	document.current.image.value = get_www(imgs[p]);
}
function next() {
	var imgs = grab_imgs();
	var current = find_img();
	var p = current;
	if( p==imgs.length-1 || p<0 ) p = -1;
	p += 1;
	swap_layers( 'large' + get_proof(imgs[current]), 'large' + get_proof(imgs[p]) );
	hide( 'original' );
	swap_layers( 'proof' + get_proof(imgs[current]), 'proof' + get_proof(imgs[p]) );
	document.current.image.value = get_www(imgs[p]);
}
function get_www( n ) {
	return n.substr(4,n.length-5);
}
function get_proof( n ) {
	return n.substr( n.lastIndexOf('/')+1, n.lastIndexOf('.')-n.lastIndexOf('/')-1 );
}
function refreshOnce() {
}