function getCookieValue(name) {
    /*alert(document.cookie);
    alert(name);*/
    var prefix = name + "="
    var cookieStartIndex = document.cookie.indexOf(prefix)
    if (cookieStartIndex == -1)
        return null
    var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex + prefix.length)
    if (cookieEndIndex == -1)
        cookieEndIndex = document.cookie.length
    return unescape(document.cookie.substring(cookieStartIndex + prefix.length, cookieEndIndex))
}
function setCookieValue(name, value, expires, path, domain, secure) {
    var curCookie = name + "=" + escape(value) +
                    ((expires) ? ";expires=" + expires.toGMTString() : "") +
                    ((path) ? ";path=" + path : "") +
                    ((domain) ? ";domain=" + domain : "") +
                    ((secure) ? ";secure" : "");
document.cookie=curCookie
}

Number.prototype.NaN0 = function() {
    return isNaN(this) ? 0 : this;
}

function getPosition(e) {
    var left = 0;
    var top = 0;
    while (e.offsetParent) {
        left += e.offsetLeft + (e.currentStyle ? (parseInt(e.currentStyle.borderLeftWidth)).NaN0() : 0);
        top += e.offsetTop + (e.currentStyle ? (parseInt(e.currentStyle.borderTopWidth)).NaN0() : 0);
        e = e.offsetParent;
    }


    left += e.offsetLeft + (e.currentStyle ? (parseInt(e.currentStyle.borderLeftWidth)).NaN0() : 0);
    top += e.offsetTop + (e.currentStyle ? (parseInt(e.currentStyle.borderTopWidth)).NaN0() : 0);

    return {x:left, y:top};

}


function mouseCoords(ev) {
    if (ev.pageX || ev.pageY) {
        return {x:ev.pageX, y:ev.pageY};
    }
    return {
        x:ev.clientX + document.body.scrollLeft - document.body.clientLeft,
        y:ev.clientY + document.body.scrollTop - document.body.clientTop
    };
}