var imageWidth = 0;
var imageSum = 0;
var imageReelWidth = 0;
var triggerID = 0;
var image_reelPosition = 0;

initSlider = function(){

	//Set Default State of each portfolio piece
	$(".paging").show();
	$(".paging a:first").addClass("active");
		
	//Get size of images, how many there are, then determin the size of the image reel.
	imageWidth = $(".window").width();
	imageSum = $(".image_reel img").size();
	imageReelWidth = imageWidth * imageSum;
	
	//Adjust the image reel to its new size
	$(".image_reel").css({'width' : imageReelWidth});

	rotateSwitch(); //Run function on launch
}
	
//Paging + Slider Function
rotate = function(){	
	triggerID = $active.attr("rel") - 1; //Get number of times to slide

	image_reelPosition = triggerID * imageWidth; //Determines the distance the image reel needs to slide

	$(".paging a").removeClass('active'); //Remove all active class
	$active.addClass('active'); //Add active class (the $active is declared in the rotateSwitch function)
	
	//Slider Animation
	$(".image_reel").animate({ 
		left: -image_reelPosition
	}, 500 );
	
}; 

//Rotation + Timing Event
rotateSwitch = function(){		
	play = setInterval(function(){ //Set timer - this will repeat itself every 3 seconds
		$active = $('.paging a.active').next();
		if ( $active.length === 0) { //If paging reaches the end...
			$active = $('.paging a:first'); //go back to first
		}
		rotate(); //Trigger the paging and slider function
	}, 7000); //Timer speed in milliseconds (3 seconds)
};

//rotateSwitch(); //Run function on launch

//On Hover
$(".image_reel a").hover(function() {
	clearInterval(play); //Stop the rotation
}, function() {
	rotateSwitch(); //Resume rotation
});	

//On Click
$(".paging a").click(function() {	
	$active = $(this); //Activate the clicked paging
	//Reset Timer
	clearInterval(play); //Stop the rotation
	rotate(); //Trigger rotation immediately
	rotateSwitch(); // Resume rotation
	return false; //Prevent browser jump to link anchor
});