jquery.jscrollpane.js滚动速度设置

function initMousewheel()
            {
                container.unbind(mwEvent).bind(
                    mwEvent,
                    function (event, delta, deltaX, deltaY) {

                        if (!horizontalDragPosition) horizontalDragPosition = 0;
                        if (!verticalDragPosition) verticalDragPosition = 0;

                        var dX = horizontalDragPosition, dY = verticalDragPosition, factor = settings.mouseWheelSpeed || event.deltaFactor;
                        jsp.scrollBy(deltaX * factor, -deltaY * factor, false);
                        // return true if there was no movement so rest of screen can scroll
                        return dX == horizontalDragPosition && dY == verticalDragPosition;
                    }
                );
            }

function initMousewheel()
            {
                container.unbind(mwEvent).bind(
                    mwEvent,
                    function (event, delta, deltaX, deltaY) {

                        if (!horizontalDragPosition) horizontalDragPosition = 0;
                        if (!verticalDragPosition) verticalDragPosition = 0;

                        var dX = horizontalDragPosition, dY = verticalDragPosition, factor = event.deltaFactor || settings.mouseWheelSpeed;
                        jsp.scrollBy(deltaX * factor, -deltaY * factor, false);
                        // return true if there was no movement so rest of screen can scroll
                        return dX == horizontalDragPosition && dY == verticalDragPosition;
                    }
                );
            }

$(‘.p5_content_wrap‘).jScrollPane({"mouseWheelSpeed":50});