$(function() {
                //scrollpane parts
                var scrollPane = $('.scroll-pane');
                var scrollContent = $('.scroll-content');
                
                //build slider
                var scrollbar = $(".scroll-bar").slider({
                        slide:function(e, ui){
                                if( scrollContent.width() > scrollPane.width() ){ scrollContent.css('margin-left', Math.round( ui.value / 100 * ( scrollPane.width() - scrollContent.width() )) + 'px'); }
                                else { scrollContent.css('margin-left', 0); }
                        }
                });
                
                //append icon to handle
                var handleHelper = scrollbar.find('.ui-slider-handle')
                .mousedown(function(){
                        scrollbar.width( handleHelper.width() );
                })
                .mouseup(function(){
                        scrollbar.width( '100%' );
                })
                .append('<span class="ui-icon ui-icon-grip-dotted-vertical"></span>')
                .wrap('<div class="ui-handle-helper-parent"></div>').parent();
                
                //change overflow to hidden now that slider handles the scrolling
                scrollPane.css('overflow','hidden');
                
                //size scrollbar and handle proportionally to scroll distance
                function sizeScrollbar(){
                        var remainder = scrollContent.width() - scrollPane.width();
                        var proportion = remainder / scrollContent.width();
                        var handleSize = scrollPane.width() - (proportion * scrollPane.width());
                        scrollbar.find('.ui-slider-handle').css({
                                width: handleSize,
                                'margin-left': -handleSize/2
                        });
                        handleHelper.width('').width( scrollbar.width() - handleSize);
                }
                
                //reset slider value based on scroll content position
                function resetValue(){
                        var remainder = scrollPane.width() - scrollContent.width();
                        var leftVal = scrollContent.css('margin-left') == 'auto' ? 0 : parseInt(scrollContent.css('margin-left'));
                        var percentage = Math.round(leftVal / remainder * 100);
                        scrollbar.slider("value", percentage);
                }
                //if the slider is 100% and window gets larger, reveal content
                function reflowContent(){
                                var showing = scrollContent.width() + parseInt( scrollContent.css('margin-left') );
                                var gap = scrollPane.width() - showing;
                                if(gap > 0){
                                        scrollContent.css('margin-left', parseInt( scrollContent.css('margin-left') ) + gap);
                                }
                }
                
                //change handle position on window resize
                $(window)
                .resize(function(){
                                resetValue();
                                sizeScrollbar();
                                reflowContent();
                });
                //init scrollbar size
                setTimeout(sizeScrollbar,10);//safari wants a timeout
        });