function makeWaiting(id, big) {
    var elem = document.getElementById(id);
    if (document.getElementById("ajaxDiv") != null)
        return;
    var newdiv;
    switch (big) {
        case 2:
            //fading ajax icon
            newdiv = document.createElement("div");
            var top = elem.offsetTop;
            var left = elem.offsetLeft;
            var upperElem = elem.offsetParent;
            while (upperElem) {
                top += upperElem.offsetTop;
                left += upperElem.offsetLeft;
                upperElem = upperElem.offsetParent;
            }
            newdiv.style.top = top + "px";
            newdiv.style.left = left + "px";
            newdiv.style.width = elem.offsetWidth + "px";
            newdiv.style.height = elem.offsetHeight + "px";
            newdiv.setAttribute("id", "ajaxDiv");
            newdiv.className = "ajaxloadingFadingNoImg";
            elem.appendChild(newdiv);
            keepFading("ajaxDiv", 0);
            break;
        case 1:
            //singleElement & small Ajax icon
            newdiv = document.createElement("div");
            var top = elem.offsetTop;
            var left = elem.offsetLeft;
            var upperElem = elem.offsetParent;
            while (upperElem) {
                top += upperElem.offsetTop;
                left += upperElem.offsetLeft;
                upperElem = upperElem.offsetParent;
            }
            newdiv.style.top = top + "px";
            newdiv.style.left = left + "px";
            newdiv.style.width = elem.offsetWidth + "px";
            newdiv.style.height = elem.offsetHeight + "px";
            newdiv.setAttribute("id", "ajaxDiv");
            newdiv.className = "ajaxloadingSingleSmall";
            if (elem.tagName.toLowerCase() != "div")
                document.body.appendChild(newdiv);
            else
                elem.appendChild(newdiv);
            break;
        case 4:
            //singleElement & big Ajax icon
            newdiv = document.createElement("div");
            var top = elem.offsetTop;
            var left = elem.offsetLeft;
            var upperElem = elem.offsetParent;
            while (upperElem) {
                top += upperElem.offsetTop;
                left += upperElem.offsetLeft;
                upperElem = upperElem.offsetParent;
            }
            newdiv.style.top = top + "px";
            newdiv.style.left = left + "px";
            newdiv.style.width = elem.offsetWidth + "px";
            newdiv.style.height = elem.offsetHeight + "px";
            newdiv.setAttribute("id", "ajaxDiv");
            newdiv.className = "ajaxloadingSingleBig";
            elem.appendChild(newdiv);
            break;
        default:
            //fullscreen ajax icon
            newdiv = document.createElement("div");
            newdiv.setAttribute("id", "ajaxDiv");
            newdiv.className = "ajaxloadingFullScreen";
            if (window.pageYOffset)
                newdiv.style.top = window.pageYOffset + "px";
            else
                newdiv.style.top = document.documentElement.scrollTop + "px";
            elem.appendChild(newdiv);
            break;
    }
}

function finishWaiting() {
    var ajaxDiv = document.getElementById("ajaxDiv");
    if (ajaxDiv == null)
        return;
    ajaxDiv.parentNode.removeChild(ajaxDiv);
}

function ImgReplace(img,s1, s2)
{
    img.src = img.src.replace(s1,s2);
}

function ClassReplace(id,s1,s2)
{
    var elem = document.getElementById(id);
    if(elem != null)
    {
        elem.className = elem.className.replace(s1,s2);
    }
}

function Show(id)
{
    var elem = document.getElementById(id);
    elem.style.display="";
}

function Hide(id)
{
    var elem = document.getElementById(id);
    elem.style.display="none";
}

function sendNewsletter()
{
    var inputtable = $('newsletterInput');
    var name = inputtable.getFirst('* input[name=name]').value;
    var email = inputtable.getFirst('* input[name=email]').value;
    var weekly = inputtable.getFirst('* input[name=A]').checked;
    var monthly = inputtable.getLast('* input[name=A]').checked;
    if(monthly)
        weekly = 0;
    else
        weekly = 1;
     new Request.HTML({
        url: '_inc/ajax.php',
        method: 'post',
        data: 'function=sendNewsletter&name=' + name + '&email=' + email + '&is_weekly=' + weekly,
        onRequest: function(){
            makeWaiting('newsletterInput',4);
        },
        onComplete: function(response){
            finishWaiting();
            response[0].replaces(inputtable);
        }
    }).send();
}