// JavaScript Document

homepage={
	pics : new Array ('outside-night-loft.jpg', 'people-outside.jpg', 'locke_outside.jpg', 'girl.jpg', 'lobster.jpg', 'guinness_pint.jpg', 'fireplace.jpg' )
};

food={
	pics: new Array ('mussels.jpg', 'dining.jpg', 'prawns2.jpg', 'fish_chips.jpg')
};

parties= {
	pics: new Array ('banner_essai.jpg', 'girl.jpg', 'locke_outside.jpg')
};

$(document).ready(function(){
	if ($('#home').is('*')) {
		pics = homepage.pics;
	} else if ($('#food').is('*')) {
		pics = food.pics;
	}else if ($('#parties').is('*')) {
		pics = parties.pics;
	}	
	$('<div id="window"></div>').appendTo('#subhead');
	$('<div id="image_reel"></div>').appendTo('#window');
	$('<div class="paging"></div>').appendTo('#subhead');
	var number_pic=0;
 	$(pics).each( function() {
		number_pic++;
		
		$('<img src="./images/banners/' + this + '" />').appendTo('#image_reel');
		
		var piclink = '<a href="#" rel="' + number_pic +'">' +number_pic + '</a>';
		$(piclink).appendTo($('.paging'));
	});
	
	//Show the paging and activate its first link
$(".paging").show();
$(".paging a:first").addClass("active");

//Get size of the image, how many images there are, then determin the size of the image reel.
var imageWidth = $("#window").width();
var imageSum = $("#image_reel img").size();
var imageReelWidth = imageWidth * imageSum;

//Adjust the image reel to its new size
$("#image_reel").css({'width' : imageReelWidth});

//Paging  and Slider Function
rotate = function(){
    var triggerID = $active.attr("rel") - 1; //Get number of times to slide
    var 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  and Timing Event
rotateSwitch = function(){
    play = setInterval(function(){ //Set timer - this will repeat itself every 7 seconds
        $active = $('.paging a.active').next(); //Move to the next paging
        if ( $active.length === 0) { //If paging reaches the end...
            $active = $('.paging a:first'); //go back to first
        }
        rotate(); //Trigger the paging and slider function
    }, 5000); //Timer speed in milliseconds (7 seconds)
};

rotateSwitch(); //Run function on launch

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

//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 timer
    return false; //Prevent browser jump to link anchor
});
   
   
   
 }); //the end