// JavaScript Document
function global_position(){
	var brouser_width = $(document).width();
	var brouser_height = $(document).height();
	$("#main_block").css({left:brouser_width / 2 - 500});
}

var photo = new Array();
var photo_position = 0;

function add_photo(name_photo){
	photo.push(name_photo);
}

function get_next_photo(){
	if(photo_position + 1 < photo.length){
		++photo_position;
		return photo[photo_position];
	}else{
		return photo[photo_position];
	}
}
function get_prev_photo(){
	if(photo_position - 1 >= 0){
		--photo_position;
		return photo[photo_position];
	}else{
		return photo[photo_position];
	}
}
function get_all_photo(){
	var all_photo = "";
	for(var i=0; i<photo.length; ++i){
		all_photo = all_photo + photo[i] + "\n";
	}
	alert(all_photo);
}
function get_first_image(){
	return photo[0];
}