// The Sliding Tabs mootools plugin is a creation of Jenna “Blueberry” Fox!

// This isn't free software, so don't forget to give me a gift of some sort!

// some idea's include poetry, drawings, songs, doodads, whosits, fuzzy things,

// software licenses, and general free stuff. Contact me at http://creativepony.com/#contact

// and let me know where you're using Sliding Tabs!

// Documentation: http://creativepony.com/journal/scripts/sliding-tabs/

// version: 1.8






var SlidingTabs = new Class({

  options: {

    startingSlide: false, // sets the slide to start on, either an element or an id

    activeButtonClass: 'active', // class to add to selected button

    activationEvent: 'click', // you can set this to ‘mouseover’ or whatever you like

    wrap: true, // calls to previous() and next() should wrap around?

    slideEffect: { // options for effect used to animate the sliding, see Fx.Base in mootools docs

      duration: 400 // 0.4 of a second

    },

    animateHeight: false, // animate height of container

    rightOversized: 0 // how much of the next pane to show to the right of the current pane

  },

  current: null, // zero based current pane number, read only

  buttons: false,

  outerSlidesBox: null,

  innerSlidesBox: null,

  panes: null,

  fx: null, // this one animates the scrolling inside

  heightFx: null, // this one animates the height





  initialize: function(buttonContainer, slideContainer, options) {

    if (buttonContainer) { this.buttons = $(buttonContainer).getChildren(); }

    this.outerSlidesBox = $(slideContainer);

    this.innerSlidesBox = this.outerSlidesBox.getFirst();

    this.panes = this.innerSlidesBox.getChildren();



    this.setOptions(options);



    this.fx = new Fx.Scroll(this.outerSlidesBox, this.options.slideEffect);

    this.heightFx = this.outerSlidesBox.effect('height', this.options.slideEffect);



    // set up button highlight

    this.current = this.options.startingSlide ? this.panes.indexOf($(this.options.startingSlide)) : 0;

    if (this.buttons) { this.buttons[this.current].addClass(this.options.activeButtonClass); }



    // add needed stylings

    this.outerSlidesBox.setStyle('overflow', 'hidden');

    this.panes.each(function(pane, index) {

      pane.setStyles({

       'float': 'left',

       'overflow': 'hidden'

      });

    }.bind(this));



    // stupidness to make IE work - it boggles the mind why this has any effect

    // maybe it's something to do with giving it layout?

    this.innerSlidesBox.setStyle('float', 'left');



    if (this.options.startingSlide) this.fx.toElement(this.options.startingSlide);



    // add events to the buttons

    if (this.buttons) this.buttons.each( function(button) {

      button.addEvent(this.options.activationEvent, this.buttonEventHandler.bindWithEvent(this, button));

    }.bind(this));



    if (this.options.animateHeight)

      this.heightFx.set(this.panes[this.current].offsetHeight);





    // set up all the right widths inside the panes

    this.recalcWidths();

  },



  // to change to a specific tab, call this, argument is the pane element you want to switch to.

  changeTo: function(element, animate) {

    if ($type(element) == 'number') element = this.panes[element - 1];

    if (!$defined(animate)) animate = true;

    var event = { cancel: false, target: $(element), animateChange: animate };

    this.fireEvent('change', event);

    if (event.cancel == true) { return; };



    if (this.buttons) { this.buttons[this.current].removeClass(this.options.activeButtonClass); };

    this.current = this.panes.indexOf($(event.target));

    if (this.buttons) { this.buttons[this.current].addClass(this.options.activeButtonClass); };



    this.fx.stop();

    if (event.animateChange) {

      this.fx.toElement(event.target);

    } else {

      this.outerSlidesBox.scrollTo(this.current * this.outerSlidesBox.offsetWidth.toInt(), 0);

    }



    if (this.options.animateHeight)

      this.heightFx.start(this.panes[this.current].offsetHeight);

  },



  // Handles a click

  buttonEventHandler: function(event, button) {

    if (event.target == this.buttons[this.current]) return;

    this.changeTo(this.panes[this.buttons.indexOf($(button))]);

  },



  // call this to go to the next tab

  next: function() {

    var next = this.current + 1;

    if (next == this.panes.length) {

      if (this.options.wrap == true) { next = 0 } else { return }

    }



    this.changeTo(this.panes[next]);

  },



  // to go to the previous tab

  previous: function() {

    var prev = this.current - 1

    if (prev < 0) {

      if (this.options.wrap == true) { prev = this.panes.length - 1 } else { return }

    }



    this.changeTo(this.panes[prev]);

  },



  // call this if the width of the sliding tabs container changes to get everything in line again

  recalcWidths: function() {

    this.panes.each(function(pane, index) {

      pane.setStyle('width', this.outerSlidesBox.offsetWidth.toInt() - this.options.rightOversized + 'px');

    }.bind(this));



    this.innerSlidesBox.setStyle(

      'width', (this.outerSlidesBox.offsetWidth.toInt() * this.panes.length) + 'px'

    );



    // fix positioning

    if (this.current > 0) {

      this.fx.stop();

      this.outerSlidesBox.scrollTo(this.current * this.outerSlidesBox.offsetWidth.toInt(), 0);

    }

  }

});



SlidingTabs.implement(new Options, new Events);




function overview()
{
document.imageone.src='images/RockSlide_SB_Overview.gif';
document.imagetwo.src='images/RockSlide_S_Industry.gif';
document.imagethree.src='images/RockSlide_S_Department.gif';
document.imagefour.src='images/RockSlide_S_SourceSystem.gif';
document.imagefive.src='images/RockSlide_S_BIFeatures.gif';
document.imagesix.src='images/RockSlide_S_DonutChallenge.gif';
}

function industry()
{
document.imageone.src='images/RockSlide_S_Overview.gif';
document.imagetwo.src='images/RockSlide_SB_Industry.gif';
document.imagethree.src='images/RockSlide_S_Department.gif';
document.imagefour.src='images/RockSlide_S_SourceSystem.gif';
document.imagefive.src='images/RockSlide_S_BIFeatures.gif';
document.imagesix.src='images/RockSlide_S_DonutChallenge.gif';
}

function department()
{
document.imageone.src='images/RockSlide_S_Overview.gif';
document.imagetwo.src='images/RockSlide_S_Industry.gif';
document.imagethree.src='images/RockSlide_SB_Department.gif';
document.imagefour.src='images/RockSlide_S_SourceSystem.gif';
document.imagefive.src='images/RockSlide_S_BIFeatures.gif';
document.imagesix.src='images/RockSlide_S_DonutChallenge.gif';
}

function sourcesystem()
{
document.imageone.src='images/RockSlide_S_Overview.gif';
document.imagetwo.src='images/RockSlide_S_Industry.gif';
document.imagethree.src='images/RockSlide_S_Department.gif';
document.imagefour.src='images/RockSlide_SB_SourceSystem.gif';
document.imagefive.src='images/RockSlide_S_BIFeatures.gif';
document.imagesix.src='images/RockSlide_S_DonutChallenge.gif';}

function bifeatures()
{
document.imageone.src='images/RockSlide_S_Overview.gif';
document.imagetwo.src='images/RockSlide_S_Industry.gif';
document.imagethree.src='images/RockSlide_S_Department.gif';
document.imagefour.src='images/RockSlide_S_SourceSystem.gif';
document.imagefive.src='images/RockSlide_SB_BIFeatures.gif';
document.imagesix.src='images/RockSlide_S_DonutChallenge.gif';
}

function donutchallenge()
{
document.imageone.src='images/RockSlide_S_Overview.gif';
document.imagetwo.src='images/RockSlide_S_Industry.gif';
document.imagethree.src='images/RockSlide_S_Department.gif';
document.imagefour.src='images/RockSlide_S_SourceSystem.gif';
document.imagefive.src='images/RockSlide_S_BIFeatures.gif';
document.imagesix.src='images/RockSlide_SB_DonutChallenge.gif';}