[Rails-spinoffs] How do you change the range on scriptaculous Slider afterwards

[Craig Roberts]

The way i have coded it at the moment is to simply create a new slider
the same as the other one but with an up to date range.

There must be a better way to do this as its causing a lot of lag
sliding after a new slider is created.

code is below thanks for any help in advance.

slider_t and b are seperate from the problem.

var slider;
var slider_t;
var slider_b;
var width;
var element;
var position;
var slider_obj;

//Event.observe(window, 'resize', update);

document.observe("dom:loaded", function() {
    slider_obj = this;
    element = $('plist_con');
    width = (element.scrollWidth-element.offsetWidth);
    $('plist_con').setStyle({ maxwidth: (width) + 'px' });

    slider = new Control.Slider('handle', 'track',
    {
        range: $R(0, width),
        sliderValue: 0, // won't work if set to 0 due to a bug(?) in
script.aculo.us
        currentValue: 0,
        onSlide: function(v)
        {
            scrollHorizontal(v, $('plist_con'), slider);
            $('pageination').innerHTML = 'slide: ' + v
            //alert(this);
        },
        onChange: function(v)
        {
            scrollHorizontal(v, $('plist_con'), slider);
            $('pageination').innerHTML = 'changed: ' + v
        }
    });

    slider_t = new Control.Slider('side_t_bar', 'side_t_track', {
            axis: 'vertical',
        onSlide: function(v) { scrollVertical(v, $('side_type'),
slider_b);  },
        onChange: function(v) { scrollVertical(v, $('side_type'),
slider_b); }
    });

    slider_b = new Control.Slider('side_b_bar', 'side_b_track', {
            axis: 'vertical',
        onSlide: function(v) { scrollVertical(v, $('side_brand'),
slider_b);  },
        onChange: function(v) { scrollVertical(v, $('side_brand'),
slider_b); }
    });

    // disable vertical scrolling if text doesn't overflow the div
    if ($('side_type').scrollHeight <= $('side_type').offsetHeight) {
        slider_t.setDisabled();
        $('side_t_wrap').hide();
    }

    // disable vertical scrolling if text doesn't overflow the div
    if ($('side_brand').scrollHeight <= $('side_brand').offsetHeight)
{
        slider_b.setDisabled();
        $('side_b_wrap').hide();
    }

    // disable horizontal scrolling if text doesn't overflow the div
    if ($('plist_con').scrollWidth <= $('plist_con').offsetWidth) {
        slider.setDisabled();
        $('wrap').hide();
    }
});
function update()
{
    width = (element.scrollWidth-element.offsetWidth);
    position = (element.scrollLeft);

    slider = new Control.Slider('handle', 'track',
    {
        range: $R(0, width),
        sliderValue: position,
        onSlide: function(v)
        {
            scrollHorizontal(v, $('plist_con'), slider);
            $('pageination').innerHTML = 'slide: ' + v
        },
        onChange: function(v)
        {
            scrollHorizontal(v, $('plist_con'), slider);
            $('pageination').innerHTML = 'changed: ' + v
        }
    });

    //setTimeout('update()', 1120);
}

function scrollVertical(value, element, slider)
{
    element.scrollTop = Math.round(value/
slider.maximum*(element.scrollHeight-element.offsetHeight));
}

function scrollHorizontal(value, element, slider)
{
    element.scrollLeft = Math.round(value/
slider.maximum*(element.scrollWidth-element.offsetWidth));
}

function moveP()
{
    x = document.getElementById('plist_con');
    var col = Math.floor(x.offsetWidth / 214)
    var scrollby = col * 214
    new Effect.Scroll('plist_con',{x:-scrollby, mode:'relative'});
    setTimeout('setscroll()', 1120)
}

function moveN()
{
    x = document.getElementById('plist_con');
    //alert("Position: " + x.scrollLeft + ", Viewable: " +
x.offsetWidth + ", Total: "+ x.scrollWidth + ", Total(S): " +
slider.maximum);
    update();
    var col = Math.floor(x.offsetWidth / 214)
    var scrollby = col * 214
    new Effect.Scroll('plist_con',{x:scrollby, mode:'relative'});
    setTimeout('setscroll()', 1120)
}

function setscroll(){
    var browserName=navigator.appName;
    update();
    if (browserName=="Microsoft Internet Explorer")
    {
        x = document.getElementById('plist_con');
        //alert("scroll left:" + x.scrollLeft);
        slider.setValue(x.scrollLeft);
    }
    else
    {
        x = document.getElementById('plist_con');
        //alert("scroll left:" + x.scrollLeft);
        slider.setValue(x.scrollLeft);
    }
}
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