var photoGallery = {

	hideelements:function(n){

		for(i=1; i<=n; i++) {

			$('#bigImage'+i).css({'display':'none'})

		}

	},

	removeclass:function(n) {

		for(i=0; i<n; i++) {

			$('.thumb').eq(i).removeClass('active')

		}

	},

	addclass:function(e){

		e.addClass('active')

	},

	animation:function(e){

		e.fadeIn('slow')

	},

	changetitle:function(title){

		$('#bigImageTitle').text(title)

	},

	

	initialize:function(){ // initialize function starts

		thumbs=$('.thumb').length;

		current=$('.thumb.active').children('a').attr('rel');

		current=parseInt(current.substr(8,1))

		

		$('.thumb').click(function(a){

			photoGallery.removeclass(thumbs)

			photoGallery.hideelements(thumbs)

			photoGallery.addclass($(this))

			photoGallery.animation($('#'+$(this).children('a').attr('rel')))

			photoGallery.changetitle($(this).children('a').attr('title'))

			current=$('.thumb.active').children('a').attr('rel');

			current=parseInt(current.substr(8,1))

		})

		

		

		$('#nextArrow').click(function(){

			if(current>=thumbs) {

				current=0;

			}

			current++;

			photoGallery.removeclass(thumbs)

			photoGallery.addclass($('.thumb').eq(current-1))

			photoGallery.hideelements(thumbs)

			photoGallery.animation($('#bigImage'+(current)))

			photoGallery.changetitle($('.thumb').eq(current-1).children('a').attr('title'))

		})

		

		$('#previousArrow').click(function(){

			current--;

			if(current<1){

				current=thumbs	

			}

			

			photoGallery.removeclass(thumbs)

			photoGallery.addclass($('.thumb').eq(current-1))

			photoGallery.hideelements(thumbs)

			photoGallery.animation($('#bigImage'+(current)))

			photoGallery.changetitle($('.thumb').eq(current-1).children('a').attr('title'))

		})

	} // initialize function ends

}