/********************************************************************************************
* BlueShoes Framework; This file is part of the php application framework.
* NOTE: This code is stripped (obfuscated). To get the clean documented code goto 
*       www.blueshoes.org and register for the free open source *DEVELOPER* version or 
*       buy the commercial version.
*       
*       In case you've already got the developer version, then this is one of the few 
*       packages/classes that is only available to *PAYING* customers.
*       To get it go to www.blueshoes.org and buy a commercial version.
* 
* @copyright www.blueshoes.org
* @author    sam blum <sam-at-blueshoes-dot-org>
* @author    Andrej Arn <andrej-at-blueshoes-dot-org>
*/
function Bs_ScrollableDiv() 
{
    this.sliderObj;
    this.bwCheckObj;
    this.lastScrollTo = 0;
    this.containerObj;
    this.contentObj;
    this.containerElm;
    this.contentElm;
    this.sliderDivId;
    this.isActive = false;

    this.init = function(containerDivId, contentDivId) 
    {
        this.bwCheckObj = lib_bwcheck();
        this.containerObj = new makeObj(this.bwCheckObj, containerDivId);
        this.contentObj = new makeObj(this.bwCheckObj, contentDivId, containerDivId);
        this.contentObj.moveIt(0, 0);
        this.containerObj.css.visibility = "visible";
        this.containerElm = document.getElementById(containerDivId);
        this.contentElm = document.getElementById(contentDivId);

        if (this.contentElm.attachEvent) 
        {
            this.contentElm.Bs_ScrollableDiv = this;
            this.contentElm.attachEvent('onmousewheel', Bs_ScrollableDiv_onMouseWheel);
        }
    }

    this.setSliderObject = function(sliderObj, sliderDivId) 
    {
        sliderObj.useInputField = 0;
        sliderObj.attachOnChange(Bs_ScrollableDiv_sliderChange);
        this.sliderObj = sliderObj;

        if (this.sliderObj.height == 'auto') 
        {
            this.sliderObj.height = this.containerElm.offsetHeight - (this.sliderObj._arrowIconLeftHeight + this.sliderObj._arrowIconRightHeight);
        }

        if (this.sliderObj.width == 'auto') 
        {
            this.sliderObj.width = this.containerElm.offsetWidth - (this.sliderObj._arrowIconLeftWidth + this.sliderObj._arrowIconRightWidth);
        }

        this.sliderObj.Bs_ScrollableDiv = this;
        this.sliderDivId = sliderDivId;
        
        this.updateScrollableSpace();
    }

    this.setSlideSpeed = function(amount, unit) 
    {
        this.sliderObj.valueInterval = 0.1;
        this.sliderObj.arrowAmount = amount * this.sliderObj.arrowKeepFiringTimeout / 1000; this.sliderObj.minVal = 0;

        if (this.sliderObj.direction == 0) 
        {
            this.sliderObj.maxVal = this.contentElm.scrollWidth - this.containerElm.offsetWidth;
        }
        else 
        {
            this.sliderObj.maxVal = this.contentElm.scrollHeight - this.containerElm.offsetHeight;
        }

        if (this.sliderObj.valueDefault > 0) 
        {
            this.sliderObj.valueDefault = this.sliderObj.maxVal / 100 * this.sliderObj.valueDefault;
        }

        this.updateScrollableSpace();
    }

    this.setWheelSpeed = function(amount, unit) 
    {
        this.sliderObj.wheelAmount = amount;
    }

    this.updateScrollableSpace = function() {
        //C2G Set to last known scroll position
        //this.sliderObj.valueDefault = this.lastScrollTo;
        
        if (this.sliderObj.direction == 0) {
            var scrollableSpace = this.contentElm.offsetWidth - this.containerElm.offsetWidth;
        }
        else {
            var scrollableSpace = this.contentElm.offsetHeight - this.containerElm.offsetHeight;
        }

        if (this.sliderObj.maxVal == 'auto') {
            this.sliderObj.maxVal = scrollableSpace;
        }

        if (scrollableSpace > 0) {
            this.isActive = true;
            this.sliderObj.setDisplay(2);
            this.sliderObj.drawInto(this.sliderDivId);

            if (this.sliderObj.valueDefault != this.sliderObj.minVal) {
                this.bsSliderChange(this.sliderObj.valueDefault);
            }
        }
        else {
            if (this.isActive) {
                this.sliderObj.setDisplay(1);
                this.sliderObj.drawInto(this.sliderDivId);
            }

            this.isActive = false;
        }
    }

    this.onMouseWheel = function() 
    {
        this.sliderObj.onMouseWheel();
    }

    this.bsSliderChange = function(val, newPos) 
    {
        var percent = val * 100 / (this.sliderObj.maxVal - this.sliderObj.minVal);

        if (this.sliderObj.direction == 0) 
        {
            var scrollableSpace = this.contentElm.offsetWidth - this.containerElm.offsetWidth;
        }
        else 
        {
            var scrollableSpace = this.contentElm.offsetHeight - this.containerElm.offsetHeight;
        }

        var scrollTo = parseInt(scrollableSpace * percent / 100);

        if (scrollTo != this.lastScrollTo) 
        {
            if (this.sliderObj.direction == 0) 
            {
                this.contentObj.moveIt(-scrollTo, 0);
            }
            else 
            {
                this.contentObj.moveIt(0, -scrollTo);
            }

            this.lastScrollTo = scrollTo;
        }
    }
}

function Bs_ScrollableDiv_onMouseWheel() 
{
    var obj = window.event.srcElement;
    var gotIt = false;

    while (true) 
    {
        if (typeof (obj.Bs_ScrollableDiv) != 'undefined') 
        {
            gotIt = true; break;
        }

        if (typeof (obj.parentNode) == 'undefined') break;

        obj = obj.parentNode;
    }

    if (gotIt && obj.Bs_ScrollableDiv.isActive) 
    {
        obj.Bs_ScrollableDiv.onMouseWheel(); return false;
    }
    else 
    {
        return true;
    }
}

function lib_bwcheck() 
{
    this.ver = navigator.appVersion;
    this.agent = navigator.userAgent;
    this.dom = (document.getElementById) ? 1 : 0;
    this.opera5 = (navigator.userAgent.indexOf("Opera") > -1 && document.getElementById) ? 1 : 0;
    this.ie5 = (this.ver.indexOf("MSIE 5") > -1 && this.dom && !this.opera5) ? 1 : 0;
    this.ie6 = (this.ver.indexOf("MSIE 6") > -1 && this.dom && !this.opera5) ? 1 : 0;
    this.ie4 = (document.all && !this.dom && !this.opera5) ? 1 : 0; this.ie = this.ie4 || this.ie5 || this.ie6; this.mac = this.agent.indexOf("Mac") > -1;
    this.ns6 = (this.dom && parseInt(this.ver) >= 5) ? 1 : 0;
    this.ns4 = (document.layers && !this.dom) ? 1 : 0;
    this.bw = (this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5);
    bs_px_char = (this.ns4 || window.opera) ? "" : "px";
    
    return this;
}

function Bs_ScrollableDiv_moveIt(x, y) 
{
    this.x = x;
    this.y = y;
    this.css.left = this.x + bs_px_char; 
    this.css.top = this.y + bs_px_char;
}

function Bs_ScrollableDiv_sliderChange(sliderObj, val, newPos)
{
    sliderObj.Bs_ScrollableDiv.bsSliderChange(val, newPos);
}

function makeObj(bwCheckObj, obj, nest)
{
    nest = (!nest) ? "" : 'document.' + nest + '.';
    this.el = bwCheckObj.dom ? document.getElementById(obj) : bwCheckObj.ie4 ? document.all[obj] : bwCheckObj.ns4 ? eval(nest + 'document.' + obj) : 0;
    this.css = (bwCheckObj.dom) ? document.getElementById(obj).style : (bwCheckObj.ie4) ? document.all[obj].style : (bwCheckObj.ns4) ? eval(nest + 'document.' + obj) : 0;
    this.scrollHeight = bwCheckObj.ns4 ? this.css.document.height : this.el.offsetHeight;
    this.clipHeight = bwCheckObj.ns4 ? this.css.clip.height : this.el.offsetHeight;
    this.moveIt = Bs_ScrollableDiv_moveIt; 
    this.x = 0; this.y = 0;
    this.obj = obj + "Object"; eval(this.obj + "=this");

    return this;
}