function MenuPanel(initializedIndex, list, listS) {
	this.selectedIndex = initializedIndex;
	this.initializedIndex = initializedIndex;
	this.selected = list;
	this.selectedS = listS;
	this.setIndex(initializedIndex);
	return this;
}

MenuPanel.prototype = {
	
	setIndex: function(index) {
		if (this.selectedIndex != index) {
			if (this.selectedIndex > -1) {
				this.selected[this.selectedIndex].style.visibility = 'visible';
				this.selectedS[this.selectedIndex].style.visibility = 'hidden';
			}
			if (index > -1) {
				this.selected[index].style.visibility = 'hidden';
				this.selectedS[index].style.visibility = 'visible';
			}
			this.selectedIndex = index;
		} else {
			if (this.initializedIndex > -1) {
				this.selected[this.initializedIndex].style.visibility = 'hidden';
				this.selectedS[this.initializedIndex].style.visibility = 'visible';
			}
		}
	},
	
	resetIndex: function() {
		this.setIndex(this.initializedIndex);
	}
};