var gal = {
    init : function() {
        if (!document.getElementById || !document.createElement || !document.appendChild) return false;
        if (document.getElementById('gallery')) document.getElementById('gallery').id = 'jgal';
        var li = document.getElementById('jgal').getElementsByTagName('li');
		enlargedImg = document.createElement('img');
		//document.getElementById('jgal').parentNode.insertBefore(captionImg,document.getElementById('jgal').nextSibling);
		enlargedImg.src = li[0].getElementsByTagName('img')[0].src;
		li[0].className = 'active';
        for (i=0; i<li.length; i++) {
            li[i].style.backgroundImage = 'url(' + li[i].getElementsByTagName('img')[0].lowsrc + ')';
            li[i].style.backgroundRepeat = 'no-repeat';
            li[i].title = li[i].getElementsByTagName('img')[0].alt;
            gal.addEvent(li[i],'click',function() {
                var im = document.getElementById('jgal').getElementsByTagName('li');
                for (j=0; j<im.length; j++) {
                    im[j].className = '';
                }
                this.className = 'active';
				//enlargedImg.src = this.getElementsByTagName('img')[0].src;
            });
        }
    },
    addEvent : function(obj, type, fn) {
        if (obj.addEventListener) {
            obj.addEventListener(type, fn, false);
        }
        else if (obj.attachEvent) {
            obj["e"+type+fn] = fn;
            obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
            obj.attachEvent("on"+type, obj[type+fn]);
        }
    }
}

gal.addEvent(window,'load', function() {
    gal.init();
});