onload = function() {
		var e, i = 0;
		while (e = document.getElementById('gallery').getElementsByTagName ('B') [i++]) {
			if (e.className == 'switch') {
			e.onclick = function () {
					var getEls = document.getElementById('gallery').getElementsByTagName('DIV');
					for (var z=0; z<getEls.length; z++) {
					getEls[z].className=getEls[z].className.replace('show', 'hide');
					w=getEls[z].previousSibling;
					while (w.nodeType!=1) {
						w=w.previousSibling;
						}
					w.className=w.className.replace('switch over', 'switch');
					w.className=w.className.replace('switch off', 'switch over');
					}
				this.className = this.className == 'switch' ? 'switch off' : 'switch';
				x=this.nextSibling;
				while (x.nodeType!=1) {
					x=x.nextSibling;
					}
				x.className = this.className == 'switch off' ? 'show' : 'hide';
				}
			}
		}
	}