//ListBox.js
//Version: 1.0
//This script is created by Samir Nigam. Do not remove, modify, or hide the author information. keep it intact.
//Mail: nigam.samir@hotmail.com
function SelezTT()
{
    var i = 0;
    var modulo = document.form.elements['comuni'];
    for (i=0; i<modulo.length; i++)
    {
        if(modulo[i].type == "checkbox")
        {
            if(i!=0){

            if(modulo[0].checked==true){
            modulo[i].disabled = true;
            }else{
            modulo[i].disabled = false;
            }

            }
        }
    }
}

function ListBox(Arguments)
{
    //Public property Version.
    this.Version = '1.0';
    
    //Local variables.
    var Ids = 0;
    var EventHandlers = new Array();
    
    var Base = Arguments.Base ? Arguments.Base : document.documentElement;
    var Size = !Arguments.Rows && Arguments.Rows > 5 ? Arguments.Rows : 6;  
    var Width = Arguments.Width ? Arguments.Width : 300;
    var NormalItemColor = Arguments.NormalItemColor ? Arguments.NormalItemColor : 'Black';
    var NormalItemBackColor = Arguments.NormalItemBackColor ? Arguments.NormalItemBackColor : '#FFFFFF';
    var AlternateItemColor = Arguments.AlternateItemColor ? Arguments.AlternateItemColor : 'Black';
    var AlternateItemBackColor = Arguments.AlternateItemBackColor ? Arguments.AlternateItemBackColor : '#FFFFFF';
    var SelectedItemColor = Arguments.SelectedItemColor ? Arguments.SelectedItemColor : '#000000';
    var SelectedIItemBackColor = Arguments.SelectedIItemBackColor ? Arguments.SelectedIItemBackColor : '#FFFFFF';
    var HoverItemColor = Arguments.HoverItemColor ? Arguments.HoverItemColor : '#FFFFFF';
    var HoverItemBackColor = Arguments.HoverItemBackColor ? Arguments.HoverItemBackColor : '#999999';
    var HoverBorderdColor = Arguments.HoverBorderdColor ? Arguments.HoverBorderdColor : '#999999';
    var ClickEventHandler = Arguments.ClickEventHandler ? Arguments.ClickEventHandler : function(){ }; 
 
    //Create div for list box.
    var ListBoxDiv = document.createElement('div');
    ListBoxDiv.style.backgroundColor = '#ffffff';
    ListBoxDiv.style.textAlign = 'left';
    ListBoxDiv.style.verticalAlign = 'top';
    ListBoxDiv.style.cursor = 'default';

    ListBoxDiv.style.border = '1px solid #999999';
    ListBoxDiv.style.overflow = 'auto';
    ListBoxDiv.style.width = Width + 'px';
    ListBoxDiv.style.height = (Size * 14) + 'px';
    
    this.AddItem = function(_Text, _Value, checked)
    {
        var Item = null;
        var CheckBox = null;        
        var Span = null;
        
        Item = document.createElement('div');        
        Item.style.backgroundColor = Ids % 2 == 0 ? NormalItemBackColor : AlternateItemBackColor;
        Item.style.color = Ids % 2 == 0 ? NormalItemColor : AlternateItemColor;;
        Item.style.fontWeight = 'normal';
        Item.style.fontFamily = 'Verdana';
        Item.style.fontSize = '8pt';
        Item.style.textAlign = 'left';
        Item.style.verticalAlign = 'middle'; 
        Item.style.cursor = 'default';
        Item.style.borderTop = Ids % 2 == 0 ? '1px solid ' + NormalItemBackColor : '1px solid ' + AlternateItemBackColor;
        Item.style.borderBottom = Ids % 2 == 0 ? '1px solid ' + NormalItemBackColor : '1px solid ' + AlternateItemBackColor;
        Item.style.overflow = 'hidden';
        Item.style.textOverflow = 'ellipsis';
        Item.ItemIndex = Ids;
        
        CheckBox = document.createElement('input');
        CheckBox.type = 'checkbox';
        CheckBox.name = 'comuni';
        CheckBox.value = _Value;

        if(checked==1){
        CheckBox.checked = checked;
        }

        Item.appendChild(CheckBox);
            
        Span = document.createElement('span');
        Span.innerHTML = _Text;     
        Span.value = _Value;     
        Span.title = _Text;     
        Item.appendChild(Span);
        
        ListBoxDiv.appendChild(Item);
        
        //Register events.
        WireUpEventHandler(Item, 'mouseover', function(){ OnMouseOver(CheckBox, Item); });
        WireUpEventHandler(Item, 'mouseout', function(){ OnMouseOut(CheckBox, Item); });
        WireUpEventHandler(Item, 'selectstart', function(){ return false; });
        WireUpEventHandler(CheckBox, 'click', function(){ OnClick(CheckBox, Item); });
        WireUpEventHandler(CheckBox, 'click', function(){ SelezTT(); });
        WireUpEventHandler(CheckBox, 'click', function(){ ClickEventHandler(CheckBox, { IsSelected: CheckBox.checked, Text: _Text, Value: _Value, ItemIndex: Item.ItemIndex }); });   
        
        Ids++;
    }
    
    //Public method GetItems.
    this.GetItems = function()
    {
        var Items = new Array();
        
        var Divs = ListBoxDiv.getElementsByTagName('div');
        
        for(var n = 0; n < Divs.length; ++n)    
            Items.push({IsSelected: Divs[n].childNodes[0].checked, Text: Divs[n].childNodes[1].innerHTML, Value: Divs[n].childNodes[1].value, ItemIndex: Divs[n].ItemIndex});  
            
        return Items;
    }
    
    //Public method Dispose.
    this.Dispose = function()
    {
        while(EventHandlers.length > 0)
            DetachEventHandler(EventHandlers.pop());
            
        Base.removeChild(ListBoxDiv);
    }
    
    //Public method Contains.
    this.Contains = function(Index)
    {
        return typeof(Index) == 'number' && ListBoxDiv.childNodes[Index] ? true : false;
    }
    
    //Public method GetItem.
    this.GetItem = function(Index)
    {       
        var Divs = ListBoxDiv.getElementsByTagName('div');
        
        return this.Contains(Index) ? { IsSelected: Divs[Index].childNodes[0].checked, Text: Divs[Index].childNodes[1].innerHTML, Value: Divs[Index].childNodes[1].value, ItemIndex: Index} : null;
    }
    
    //Public method DeleteItem.
    this.DeleteItem = function(Index)
    {
        if(!this.Contains(Index)) return false;
        
        try
        {
            ListBoxDiv.removeChild(ListBoxDiv.childNodes[Index]);
        }
        catch(err)
        {
            return false;
        }
        
        return true;
    }
    
    //Public method DeleteItems.
    this.DeleteItems = function()
    {
        var ItemsRemoved = 0;
        
        for(var n = ListBoxDiv.childNodes.length - 1; n >= 0; --n)   
            try
            {
                ListBoxDiv.removeChild(ListBoxDiv.childNodes[n]);
                ItemsRemoved++;
            }
            catch(err)
            {
                break;
            }
            
       return ItemsRemoved;
    }
    
    //Public method GetTotalItems.
    this.GetTotalItems = function()
    {
        return ListBoxDiv.childNodes.length;
    }
    
    //Item mouseover event handler.
    var OnMouseOver = function(CheckBox, Item)
    {
        if(CheckBox.checked) return;
                
        Item.bgColor = Item.style.backgroundColor;
        Item.fColor = Item.style.color;
        Item.bColor = Item.style.borderTopColor;
        Item.style.backgroundColor = HoverItemBackColor;
        Item.style.color = HoverItemColor;
        Item.style.borderTopColor = Item.style.borderBottomColor = HoverBorderdColor;
        Item.style.fontWeight = 'bold';
    }
    
    //Item mouseout event handler.
    var OnMouseOut = function(CheckBox, Item)
    {
        if(CheckBox.checked) return;
                
        Item.style.backgroundColor = Item.bgColor;
        Item.style.color = Item.fColor;
        Item.style.borderTopColor = Item.style.borderBottomColor = Item.bColor;
        Item.style.fontWeight = 'normal';
    }
    
    //CheckBox click event handler.
    var OnClick = function(CheckBox, Item)
    {   
        if(CheckBox.checked)
        {
            Item.style.backgroundColor = SelectedIItemBackColor;
            Item.style.color = SelectedItemColor;
            Item.style.borderTopColor = Item.style.borderBottomColor = SelectedIItemBackColor;
        }
        else
        {
            Item.style.backgroundColor = HoverItemBackColor;
            Item.style.color = HoverItemColor;
            Item.style.borderTopColor = Item.style.borderBottomColor = HoverBorderdColor;
        }
    } 
    
    //Private anonymous method to wire up event handlers.
    var WireUpEventHandler = function(Target, Event, Listener)
    {
        //Register event.
        if(Target.addEventListener)    
            Target.addEventListener(Event, Listener, false);        
        else if(Target.attachEvent)    
            Target.attachEvent('on' + Event, Listener);
        else 
        {
            Event = 'on' + Event;
            Target.Event = Listener;     
        }
        
        //Collect event information through object literal.
        var EVENT = { Target: Target, Event: Event, Listener: Listener }
        EventHandlers.push(EVENT);
    }
    
    //Private anonymous  method to detach event handlers.
    var DetachEventHandler = function(EVENT)
    {
        if(EVENT.Target.removeEventListener)       
            EVENT.Target.removeEventListener(EVENT.Event, EVENT.Listener, false);       
        else if(EVENT.Target.detachEvent)      
            EVENT.Target.detachEvent('on' + EVENT.Event, EVENT.Listener);
        else 
        {
            EVENT.Event = 'on' + EVENT.Event;
            EVENT.Target.EVENT.Event = null;     
        }
    }
     
    WireUpEventHandler(ListBoxDiv, 'contextmenu', function(){ return false; });
    Base.appendChild(ListBoxDiv);
}