$(document).ready(function() {

// $('#posta').html("info@n4w.cz");

	//Set Default State of each portfolio piece
	$(".slider_paging").show();
	$(".slider_paging a:first").addClass("active");
		
	//Get size of images, how many there are, then determin the size of the image reel.
	var imageWidth = $(".slider_window").width();
	var imageSum = $(".slider_content div").size();
	var imageReelWidth = imageWidth * imageSum;
	
	//Adjust the image reel to its new size
	$(".slider_content").css({'width' : imageReelWidth});
	
	//Paging + Slider Function
	rotate = function(){	
		var triggerID = $active.attr("rel") - 1; //Get number of times to slide
		var slider_contentPosition = triggerID * imageWidth; //Determines the distance the image reel needs to slide

		$(".slider_paging a").removeClass('active'); //Remove all active class
		$active.addClass('active'); //Add active class (the $active is declared in the rotateSwitch function)
		
		//Slider Animation
		$(".slider_content").animate({ 
			left: -slider_contentPosition
		}, 500 );
		
	}; 
	
	//Rotation + Timing Event
	rotateSwitch = function(){		
		play = setInterval(function(){ //Set timer - this will repeat itself every 3 seconds
			$active = $('.slider_paging a.active').next();
			if ( $active.length === 0) { //If paging reaches the end...
				$active = $('.slider_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
	$(".slider_content a").hover(function() {
		clearInterval(play); //Stop the rotation
	}, function() {
		rotateSwitch(); //Resume rotation
	});	

	//On Click
	$(".slider_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
	});

	$("img.slider_prev").click(function() {
		$active = $('.slider_paging a.active').prev();
		if ( $active.length === 0) { //If paging reaches the end...
			$active = $('.slider_paging a:last'); //go back to first
		}
		clearInterval(play); //Stop the rotation
		rotate(); //Trigger rotation immediately
		rotateSwitch(); // Resume rotation
		return false; //Prevent browser jump to link anchor
	});
	$("img.slider_next").click(function() {
		$active = $('.slider_paging a.active').next();
		if ( $active.length === 0) { //If paging reaches the end...
			$active = $('.slider_paging a:first'); //go back to first
		}
		clearInterval(play); //Stop the rotation
		rotate(); //Trigger rotation immediately
		rotateSwitch(); // Resume rotation
		return false; //Prevent browser jump to link anchor
	});

});