function sendFeedback(){
	var res = true;
	var form = $('feedbackForm');
	if(form.name.value==''){
		alert('Please, enter Your Name!');
		res = false;
	} else if(form.note.value==''){
		alert('Please, enter\nYour Message!');
		res = false;
	} else if (form.code.value==''){
		alert('Please, enter\nthe Code\non the Image!');
		res = false;
	}
	
	return res;

}

function hideLoading(){
	$('loading').hide();
}

function show(some){
	//if(active == null) active = $('works').getElementsByClassName('numbers_active').first();
	if(active == null) active = $('works').select('.numbers_active').first();
	var some = $(String(some));
	active.removeClassName('numbers_active');
	some.addClassName('numbers_active');
	active = some;
	$('loading').show();
	var work = works[parseInt(some.name)];
	$('workImage').onload = hideLoading;
	$('workImage').src = work.img;
	$('workTitle').update(work.label);
}

function next(){
	var noo = $('works');
	if(active == null) active = noo.select('.numbers_active').first();
	var foo = active.next();
	if(foo == undefined) foo = noo.select('.numbers').first();
	show(foo.id);
}

function previous(){
	var noo = $('works');
	if(active == null) active = noo.select('.numbers_active').first();
	var foo = active.previous(); 
	if(foo.hasClassName('works_buttons')) foo = noo.select('.numbers').last();
	show(foo.id);
}

var active = null;