if (!Bs_Objects)
{
    var Bs_Objects = [];
    //alert(Bs_Objects.length);
}
;

function Bs_Checkbox()
{
    this._id;
    this._tagId;
    this.checkboxName;
    this.checkboxValue;
    //Added by dubf on 2004/04/19
    this.value = 0;
    this.noPartly = false;
    this.disabled = false;
    this.guiNochange = false;
    this.caption;
    this.imgDir;
    // = '../image/checkbox/win2k/';
    this.imgWidth;
    //  = 13;
    this.imgHeight;
    // = 13;
    this.imgStyle = '';
    this.useMouseover = true;
    this.eventOnClick;
    this.eventOnChange;

    this._constructor = function()
    {
        this._id = Bs_Objects.length;
        //alert(this._id);
        Bs_Objects[this._id] = this;
        this._tagId = "Bs_Checkbox_" + this._id + "_";
    }

    this.render = function(tagId)
    {
        if (this.noPartly && (this.value == 1)) this.value = 2;
        if (!bs_isEmpty(tagId))
        {
            this._tagId = tagId;
        }
        var out = new Array();
        var outI = 0;
        var img = '';
        img += (this.disabled) ? 'disabled' : 'enabled';
        img += '_' + this.value;
        if (!this.disabled)
        {
            out[outI++] = '<span';
            if (!this.guiNochange)
            {
                out[outI++] = ' onClick="Bs_Objects[' + this._id + '].onClick(\'' + this._tagId + '\');"';
            }

            out[outI++] = ' style="cursor:hand;"';

            if (this.useMouseover && !this.guiNochange)
            {
                out[outI++] = ' onMouseOver="Bs_Objects[' + this._id + '].onMouseOver(\'' + this._tagId + '\');"';
                out[outI++] = ' onMouseOut="Bs_Objects[' + this._id + '].onMouseOut(\'' + this._tagId + '\');"';
            }
            out[outI++] = '>';
        }

        if (!this.imgWidth)
        {
            if (this.imgDir.indexOf("win2000") > 0)
            {
                this.imgWidth = 13;
                this.imgHeight = 13;
                //alert(this.imgDir);
            }
            else
            {
                this.imgWidth = 11;
                this.imgHeight = 11;
            }
        }
        out[outI++] = '<img id="' + this._tagId + 'icon" src="' + this.imgDir + img + '.gif" border="0" width="' + this.imgWidth + '" height="' + this.imgHeight + '"';
        if (!bs_isEmpty(this.imgStyle))
            out[outI++] = ' style="' + this.imgStyle + '"';
        out[outI++] = '>';

        if (this.caption)
        {
            out[outI++] = '&nbsp;' + this.caption;
        }

        if (!this.disabled)
        {
            out[outI++] = '</span>';
        }

        if (!this.checkboxName)
        {
            this.checkboxName = 'checkbox' + this._tagId;
        }

        out[outI++] = '<input value="' + this.value + '" checkboxValue="' + this.checkboxValue + '" type=checkbox name="' + this.checkboxName + '" id="' + this.checkboxName + '" style="display:none; visibility:hidden;"';
        //Modied by dubf on 2004/4/19
        //alert(this.checkboxValue);
        if (this.value) out[outI++] = ' checked';
        out[outI++] = '>';

        return out.join('');
    }

    this.drawInto = function(tagId)
    {
        if (!bs_isEmpty(tagId))
        {
            this._tagId = tagId;
        }
        document.getElementById(this._tagId).innerHTML = this.render(this._tagId);
    }

    this.draw = function(tagId)
    {
        this.drawInto(tagId);
    }

    this.write = function()
    {
        document.write(this.render(this._tagId));
    }

    this.convertField = function(fieldId)
    {
        document.getElementById(fieldId).outerHTML = this.render(this._tagId);
    }

    this.onMouseOver = function()
    {
        var img = document.getElementById(this._tagId + 'icon');
        if (!img.swapOver0)
        {
            img.swapOver0 = new Image();
            img.swapOver0.src = this.imgDir + 'enabled_0_over.gif';
            img.swapOver1 = new Image();
            img.swapOver1.src = this.imgDir + 'enabled_1_over.gif';
            img.swapOver2 = new Image();
            img.swapOver2.src = this.imgDir + 'enabled_2_over.gif';
            img.swapOut0 = new Image();
            img.swapOut0.src = this.imgDir + 'enabled_0.gif';
            img.swapOut1 = new Image();
            img.swapOut1.src = this.imgDir + 'enabled_1.gif';
            img.swapOut2 = new Image();
            img.swapOut2.src = this.imgDir + 'enabled_2.gif';
        }
        img.src = img['swapOver' + this.value].src;
    }

    this.onMouseOut = function()
    {
        var img = document.getElementById(this._tagId + 'icon');
        img.src = img['swapOut' + this.value].src;
    }

    this.onClick = function()
    {
        //alert(this.value);
        switch (this.value)
                {
            case 0:
                this.value = 2;
                break;
            case 1:
            case 2:
                this.value = 0;
                this.value = 0;
                break;
            default:
                this.value = 0;
        }
        this._updateHiddenField();
        this._updateIcon();
        if (this.eventOnClick)
            this._fireEvent(this.eventOnClick);
        if (this.eventOnChange)
            this._fireEvent(this.eventOnChange);
        //alert(this.value);
    }

    this.setTo = function(value, cancelEventOnChange)
    {
        this.value = value;
        this._updateHiddenField();
        this._updateIcon();
        if (!cancelEventOnChange)
        {
            if (this.eventOnChange) this._fireEvent(this.eventOnChange);
        }
    }

    this.attachOnClick = function(globalFunctionName)
    {
        this.eventOnClick = globalFunctionName;
    }

    this.attachOnChange = function(globalFunctionName)
    {
        this.eventOnChange = globalFunctionName;
    }

    this._fireEvent = function(e)
    {
        if (e)
        {
            if (typeof(e) != 'array')
            {
                e = new Array(e);
            }
            for (var i = 0; i < e.length; i++)
            {
                if (typeof(e[i]) == 'function')
                {
                    e[i](this);
                }
                else if (typeof(e[i]) == 'string')
                {
                    eval(e[i]);
                }
            }
        }
    }

    this._updateIcon = function()
    {
        var iconElm = document.getElementById(this._tagId + 'icon');
        if (iconElm != null)
        {
            var img = '';
            img += (this.disabled) ? 'disabled' : 'enabled';
            img += '_' + this.value;
            iconElm.src = this.imgDir + img + '.gif';
        }
    }

    this._updateHiddenField = function()
    {
        var elm = document.getElementById(this.checkboxName);
        elm.value = this.value;
        elm.checked = (this.value);
    }

    this._constructor();
}