/**
 * jQuery Smooth Tabs version 1.1.0
 *
 * Author: Alexander Petkov
 * E-mail: petkov@webdesign-bulgaria.com
 * URL: http://www.webdesign-bulgaria.com
 * Copyright: (c) 2010 - Alexander Petkov, Webdesign Bulgaria Group Ltd.
 *
 * Example:
 * $('.smoothTabs').smoothTabs(FADE-SPEED-IN-MILISECONDS);
 *  
 * Works for:
 * <div class="smoothTabs">
 *     <ul>
 *         <li>tab 1</li>
 *         <li id="tab2">tab 2</li> <!-- hash support ex. www.example.com/url#tab2 -->
 *     </ul>
 *     <div>
 *         content for tab 1
 *     </div>
 *     <div>
 *         content for tab 2
 *     </div>
 * </div>
 *
 * Tested with jQuery 1.3.2 
 *
 * Changelog:
 *				1.1: - Added hash support.
 *					 - Fixed the hidden div bug.
 *					 - Fixed some coding style
 *
 * LICENSE:
 *
 * Copyright (c) 2010 Alexander Petkov, http://www.webdesign-bulgaria.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
(function($) {  
    $.fn.smoothTabs = function(fadeSpeed) {
		// Visible index
		var currentIndex = 0;
        // Clicked tab class
        var smoothTabsLiCurrent = 'smoothTabsLiCurrent';
        // Hidden div class
        var smoothTabsDivHidden = 'smoothTabsDivHidden';
        // Visible div class
        var smoothTabsDivVisible = 'smoothTabsDivVisible';
		// Current hash if any.
		var hash = document.location.hash.substr(1, document.location.hash.length);

		if (hash && $('#'+hash, this).size()) {
			currentIndex = $('#'+hash, this).index();
		}

        // Makes first tab current, hides all divs and fades in the first one
        this.each(function() {
            $('ul li:eq('+currentIndex+')', this).addClass(smoothTabsLiCurrent);
            $(this).children("div").addClass(smoothTabsDivHidden);
            $('div:eq('+currentIndex+')', this).fadeIn(fadeSpeed)
                                .addClass(smoothTabsDivVisible)
                                .removeClass(smoothTabsDivHidden);
		});

        // Tab click function
        $('ul li', this).click(function(){
            var $parentUl = $(this).parent();
            var $parentDiv = $($parentUl).parent();
            $('li', $parentUl).removeClass(smoothTabsLiCurrent);
            $(this).addClass(smoothTabsLiCurrent);
            var $clickedIndex = $('li', $parentUl).index(this);
            var $currentDiv = $('div', $parentDiv).get($clickedIndex);
            
            // If current tab is clicked - we're done
            if ($($currentDiv).attr('class') == smoothTabsDivVisible) {
                return false;
            }
            
            // Current div is replaced by the selected one
            $('.'+smoothTabsDivVisible, $parentDiv).fadeOut(fadeSpeed, function(){
                $($currentDiv).fadeIn(fadeSpeed).addClass(smoothTabsDivVisible).removeClass(smoothTabsDivHidden);
            });
            $('.'+smoothTabsDivVisible, $parentDiv).removeClass(smoothTabsDivVisible).addClass(smoothTabsDivHidden);
        });
    };
})(jQuery);