var BooksScrollerSliderFixWidth = 492;
var BooksScrollerOffsetFixWidth = 0;

function BooksScrollerSlideToLeft(_sld)
{
    var sld = $('#'+_sld);
    if(sld != null)
    {
        var offsetWidth = sld.width();
        var offsetLeft  = parseInt(sld.css("marginLeft"), 10);
        if ((offsetWidth + offsetLeft) > BooksScrollerSliderFixWidth)
        {
            var _left = offsetLeft - BooksScrollerSliderFixWidth;
            
            if ((offsetWidth + _left) < BooksScrollerSliderFixWidth)
                _left = -(offsetWidth - BooksScrollerSliderFixWidth);

            sld.animate({ marginLeft: _left}, 500 );
        }
    }
}


function BooksScrollerSlideToRight(_sld)
{
    var sld = $('#'+_sld);
    if(sld != null)
    {
        var offsetWidth = sld.width();
        var offsetLeft = parseInt(sld.css("marginLeft"), 10);
        var _left = 0;
        
        if (offsetLeft < 0)
            _left = (offsetLeft + BooksScrollerSliderFixWidth);

        if (_left > 0) _left = 0;
        
        sld.animate({ marginLeft: _left}, 500 );
    }
}