// Function returns a random number between 1 and n
function rand(n){return(Math.floor(Math.random()*n+1));}
jQuery(document).ready(function(){
// Disable HTML title attribute for slider images
jQuery('.promo_slider img').removeAttr('title');
// Get all instances of promo_slider on the page
var sliders = jQuery('.promo_slider_wrapper');
// Cycle through each slider
jQuery.each(sliders, function(){
// Define current slider
var currentSlider = jQuery(this);
var thisSlider = jQuery('.promo_slider', currentSlider);
// Get all panels
var panels = jQuery('.panel', thisSlider);
// Get total count of panels
var panelCount = panels.length;
// Set number for first panel
if( promo_slider_options.startOn == 'first' ) var initialPanel = 1;
else var initialPanel = rand(panelCount);
if( currentSlider.hasClass('random') ) initialPanel = rand(panelCount);
if( currentSlider.hasClass('first') ) initialPanel = 1;
// Should we pause the slider on mouseover?
var pauseOnMouseover;
if( currentSlider.hasClass('pause') ) pauseOnMouseover = true;
else pauseOnMouseover = false;
// Assign variable for setInterval
var sliderInterval;
// Set time delay
var timeDelay = promo_slider_options.timeDelay;
if( jQuery('.promo_slider_time_delay', thisSlider).html() ){
timeDelay = jQuery('.promo_slider_time_delay', thisSlider).html();
}
// Set auto advance variable
var autoAdvance = promo_slider_options.autoAdvance;
if( thisSlider.hasClass('auto_advance') ) autoAdvance = true;
if( thisSlider.hasClass('no_auto_advance') ) autoAdvance = false;
if( panelCount < 2 ) autoAdvance = false;
// Set navigation option
var navOption = promo_slider_options.nav_option;
if( currentSlider.hasClass('default_nav') ) navOption = 'default';
else if( currentSlider.hasClass('fancy_nav') ) navOption = 'fancy';
else if( currentSlider.hasClass('links_nav') ) navOption = 'links';
else if( currentSlider.hasClass('thumb_nav') ) navOption = 'thumb';
else navOption = false;
// Hide all panels
panels.hide();
// Show initial panel and add class 'current' to active panel
jQuery('.panel-' + initialPanel, currentSlider).show().addClass('current');
if(panelCount > 1 && (navOption == 'default' || navOption == 'fancy' || navOption == 'thumb') ){
jQuery('.promo_slider_nav').show();
jQuery('.promo_slider_thumb_nav').show();
if(navOption == 'fancy' || navOption == 'default'){
// Generate HTML for navigation
var navHTML = '';
jQuery.each(panels, function(index, object){
// Set panel title
panelTitle = jQuery('.panel-'+(index+1)+' span.panel-title', currentSlider).html();
newSpan = ''+(index+1)+'';
if( (index + 1) != panelCount){newSpan = newSpan + ' | ';}
navHTML = navHTML + newSpan;
});
// Insert HTML into nav
jQuery('.slider_selections', currentSlider).html(navHTML);
}
// Set click functions for each span in the slider nav
var slideNav = jQuery('.slider_selections span', currentSlider);
jQuery.each(slideNav, function(index, object){
jQuery(object).click(function(){
clearInterval(sliderInterval);
if( !jQuery(object).hasClass('current') ) progress(jQuery(object).attr('class'), currentSlider, panelCount);
if(autoAdvance) sliderInterval = setInterval(function(){progress('forward', currentSlider, panelCount);}, (timeDelay * 1000));
});
});
// Set active span class to 'current'
jQuery('.slider_selections span[class=' + initialPanel + ']', currentSlider).addClass('current');
}
// Create click functions for navigational elements
jQuery('.move_forward', currentSlider).click(function(){
clearInterval(sliderInterval);
progress('forward', currentSlider, panelCount);
if(autoAdvance) sliderInterval = setInterval(function(){progress('forward', currentSlider, panelCount);}, (timeDelay * 1000));
});
jQuery('.move_backward', currentSlider).click(function(){
clearInterval(sliderInterval);
progress('backward', currentSlider, panelCount);
if(autoAdvance) sliderInterval = setInterval(function(){progress('forward', currentSlider, panelCount);}, (timeDelay * 1000));
});
if( autoAdvance ){
// Begin auto advancement of slides
sliderInterval = setInterval(function(){progress('forward', currentSlider, panelCount);}, (timeDelay * 1000));
if( pauseOnMouseover ){
// Pause slide advancement on mouseover
jQuery(thisSlider).mouseover(function(){
clearInterval(sliderInterval);
});
// Continue slide advancement on mouseout
jQuery(thisSlider).mouseout(function(){
sliderInterval = setInterval(function(){progress('forward', currentSlider, panelCount);}, (timeDelay * 1000));
});
}
}
});
// Progress to selected panel
function progress(value, currentSlider, panelCount){
// Find number of current panel
var currentValue = jQuery('div.promo_slider > .panel', currentSlider).index(jQuery('div.panel.current', currentSlider)) + 1;
// Set value of new panel
if(value == 'forward'){
var newValue = currentValue + 1;
if(newValue > panelCount){newValue = 1;}
}
else if(value == 'backward'){
var newValue = currentValue - 1;
if(newValue == 0){newValue = panelCount;}
}
else{
var newValue = value;
}
// Assign variables for ease of use
var currentItem = jQuery('.panel-' + currentValue, currentSlider);
var newItem = jQuery('.panel-' + newValue, currentSlider);
var currentSpan = jQuery('.slider_selections span.current', currentSlider);
var newSpan = jQuery('.slider_selections span.' + newValue, currentSlider);
// Add / Remove classes
currentItem.removeClass('current');
newItem.addClass('current');
currentSpan.removeClass('current');
newSpan.addClass('current');
// Fade in / out
currentItem.fadeOut('fast', function(){
newItem.fadeIn('fast');
});
}
});