function initRollovers() {
    $$('#ul_service_list a').each(function(s, i){
        s.observe('mouseover', function(){
            $('r'+i).addClassName('visible');
        });
        s.observe('mouseout', function(){
            $('r'+i).removeClassName('visible');
        });
    });
}

function preloadImg(suffix, is_home) {
	if (is_home) {
		heavyImage1 = new Image();
		heavyImage1.src = '/img/site/blocks/1' + suffix + '.png';
		heavyImage2 = new Image();
		heavyImage2.src = '/img/site/blocks/2' + suffix + '.png';
		heavyImage3 = new Image();
		heavyImage3.src = '/img/site/blocks/3' + suffix + '.png';
		heavyImage4 = new Image();
		heavyImage4.src = '/img/site/blocks/4' + suffix + '.png';
	} else {
		heavyImage1 = new Image();
		heavyImage1.src = '/img/site/rollover.png';
	}
}

function sendFeedback() {
    var username = $('f_username').value;
    var content = $('f_content').value;

    if (username=='' || content=='') {
        alert(msg_feedback_fill_error);
        return;
    }

    var email = $('f_email').value;
    var subject = $('f_subject').value;

    new Ajax.Request('/Feedback/add', {
        method: 'post',
        parameters: {
            username: username,
            email: email,
            subject: subject,
            content: content
        },
        onSuccess: function(result) {
            result = result.responseText.evalJSON();
            
            if (result.success===true) {
                alert(msg_feedback_success);
                Lightbox.hideBox();
            } else {
                alert(msg_feedback_send_error);
            }
        },
        onFailure: function() {
            alert(msg_feedback_send_error);
        }
    });
}

function getFeedbackForm(lng, subj) {
    Lightbox.showBoxByAJAX('/Feedback/' + lng + '/' + subj, 500, 430);
    return false;
}

/**
 * Вывод адреса электронной почты
 */
function showEmail(subj) {
    document.write('<a class="a_local lbOn" href="');
    document.write("info");
    document.write("@");
    document.write("uniteller");
    document.write(".");
    document.write("ru");
    if ( subj.length > 3 ) {
        document.write("?subject="+subj);
    }
    document.write('">');
    document.write("info");
    document.write("@");
    document.write("uniteller");
    document.write(".");
    document.write("ru");
    document.write("</a>");
}