/* ================================================================ 
This copyright notice must be untouched at all times.

The original version of this script and the associated (x)html
is available at http://www.stunicholls/gallery/left_right_click.html
Copyright (c) 2005-2007 Stu Nicholls. All rights reserved.
This script and the associated (x)html may be modified in any 
way to fit your requirements.
=================================================================== */

clickMenu = function(gallery) 
{
var getImg = document.getElementById(gallery).getElementsByTagName("IMG");
var getLi = document.getElementById(gallery).getElementsByTagName("LI");

for (var i=0; i<getImg.length; i++) {
getImg[i].onclick=function() {
if ((this.className.indexOf('left'))!=-1) {
for (var x=getLi.length-1; x>0; x--) {
if ((getLi[x].className.indexOf('chosen'))!=-1)	{
getLi[x].className=getLi[x].className.replace("chosen", "");
x--;
if (x>-1) {
getLi[x].className+=" chosen";
if (x>-1 && x<getLi.length-7){
getLi[x].className=getLi[x].className.replace("hide", "");
if ((getLi[x+7].className.indexOf('hide'))==-1)
{
getLi[x+7].className+=" hide";
}
}
}
}
}
}

if ((this.className.indexOf('right'))!=-1) {
for (var x=0; x<getLi.length-1; x++) {
if ((getLi[x].className.indexOf('chosen'))!=-1)	{
getLi[x].className=getLi[x].className.replace("chosen", "");
x++;
if (x<getLi.length) {
getLi[x].className+=" chosen";
if (x>6 && x<getLi.length) {
getLi[x].className=getLi[x].className.replace("hide", "");
if ((getLi[x-7].className.indexOf('hide'))==-1)
{
getLi[x-7].className+=" hide";
}
}
}
}
}
}
}
}

for (var i=0; i<getLi.length; i++) {
getLi[i].onclick=function() {
for (var x=0; x<getLi.length; x++) {
if ((getLi[x].className.indexOf('chosen'))!=-1)	{
getLi[x].className=getLi[x].className.replace("chosen", "");
}
}
this.className+=" chosen";		
}
}
}