var DSH = new function()
{
    this._CONTAINER = null;
    
    this.SetContainer = function(containerID)
    {
        DSH._CONTAINER = document.getElementById(containerID);
    }; // SetContainer(containerID)
    this.GetContainer = function()
    {
        return DSH._CONTAINER;
    }; // GetContainer()
    this.GetItems = function()
    {
        return DSH._CONTAINER.getElementsByTagName('div');
    }; // GetItems()
    
    this.HideAll = function()
    {
        var divs = DSH.GetItems();
        for(var i = 0; i < divs.length; i++) { divs[i].style.display = 'none'; }
    }; // HideAll()
    this.ShowItem = function(index)
    {
        DSH.HideAll();
        DSH.GetItems()[index].style.display = '';
    }; // ShowItem(index)
};