/*
* SmartTab plugin v0.99
*
* jQuery Tab Control Plugin
* 
* Dips  
* 
* http://tech-laboratory.blogspot.com
* http://techlaboratory.wordpress.com
*/

(function($){
$.fn.smartTab = function(options) {
var options = $.extend({}, $.fn.smartTab.defaults, options);

return this.each(function() {
obj = $(this);
var curTabIdx = options.selected; // Set the current tab index to default tab
var tabs = $("ul > li > a", obj); // Get all anchors in this array
var autoProgressId = null;
// adjust effect string
options.transitionEffect = (typeof(options.transitionEffect)=='string' && options.transitionEffect!='') ? options.transitionEffect : 'none';

$(obj).addClass(options.tabContainerClass); // Set the CSS on top element		       

hideAllSteps(); // Hide all content on the first load

showTab();

$(tabs).bind("click", function(e){
if(tabs.index(this)==curTabIdx)
return false;
var prevTabIdx = curTabIdx;
curTabIdx = tabs.index(this);
hideTab(prevTabIdx);
if(options.autoProgress){
restartAutoProgress();
}
return false;
});

if(options.keyNavigation){
$(document).keyup(function(e){
if(e.which==39){ // Right Arrow
doForwardProgress();
if(options.autoProgress){
restartAutoProgress();
}
}else if(e.which==37){ // Left Arrow
doBackwardProgress();
if(options.autoProgress){
restartAutoProgress();
}
}
});
}
if(options.autoProgress){
startAutoProgress();
}
if(options.autoProgress && options.stopOnFocus){
$(obj).bind("mouseenter mousemove mouseover", function(e){
stopAutoProgress();
return true;
});
$(obj).bind("mouseleave", function(e){
startAutoProgress();
return true;
});
}
function hideAllSteps(){
$(tabs, obj).each(function(){
$($(this, obj).attr("href"), obj).hide();//slideUp("fast");.fadeOut()
});
}
function showTab(){
var selTab = tabs.eq(curTabIdx); 
$(tabs, obj).removeClass("sel");
$($(selTab, obj), obj).addClass("sel");
if(options.transitionEffect == 'slide'){
$($(selTab, obj).attr("href"), obj).slideDown("slow");//slideDown("slow");.fadeIn()
} else if(options.transitionEffect == 'fade'){
$($(selTab, obj).attr("href"), obj).fadeIn("slow");//slideDown("slow");.fadeIn()
} else{
$($(selTab, obj).attr("href"), obj).show();
}
return true;
}
function hideTab(idx){
var selTab = tabs.eq(idx);
if(options.transitionEffect == 'slide'){
$($(selTab, obj).attr("href"), obj).slideUp("slow",showTab);//slideDown("slow");.fadeIn()
} else if(options.transitionEffect == 'fade'){
$($(selTab, obj).attr("href"), obj).fadeOut("slow",showTab);
} else{
$($(selTab, obj).attr("href"), obj).hide();
showTab();
}
return true;
}
// Auto progress
function startAutoProgress(){
if(!autoProgressId){
autoProgressId = setInterval(doForwardProgress, options.progressInterval);
}
}
function restartAutoProgress(){
stopAutoProgress();
startAutoProgress();
}
function stopAutoProgress(){
if(autoProgressId){
clearInterval(autoProgressId);
autoProgressId = null;
}
}
function doForwardProgress(){
var nextTabIdx = curTabIdx+1;
var prevTabIdx = curTabIdx;
if(tabs.length <= nextTabIdx){
nextTabIdx = 0;
}
curTabIdx = nextTabIdx;
hideTab(prevTabIdx);
}
function doBackwardProgress(){
var nextTabIdx = curTabIdx-1;
var prevTabIdx = curTabIdx;
if(0 > nextTabIdx){
nextTabIdx = tabs.length-1;
}
curTabIdx = nextTabIdx;
hideTab(prevTabIdx);
}
});  
};  

// Defaults jQuery(this).animate({width: 'show'}); jQuery(this).animate({width: 'hide'});
$.fn.smartTab.defaults = {
selected: 0,  // Selected Tab, 0 = first step   
keyNavigation:true, // Enable/Disable key navigation(left and right keys are used if enabled)
autoProgress:false, // Auto navigate tabs on interval
progressInterval: 3500, // Auto navigate Interval (used only if "autoProgress" is set to true)
stopOnFocus:false,
transitionEffect:'none', // Effect on navigation, none/fade/slide
tabContainerClass:'stContainer' // tab container css class name
};

})(jQuery);