if (typeof org === 'undefined') var org = {af: {}};
else if (typeof org.af === 'undefined') org.af = {};

af_vid=934745631;if(typeof AdflanCallback=='function')AdflanCallback(false);
document.write('<img src="about:blank" id="adflan-banner" style="width:1px;height:1px" />');
org.af.offset=-1;
window.getCorrectSize = function() {
    var w = 0; var h = 0;

    //IE
    if(!window.innerWidth) {
        //strict mode
        if(!(document.documentElement.clientWidth == 0)) { w = document.documentElement.clientWidth; h = document.documentElement.clientHeight; }
        //quirks mode
        else { w = document.body.clientWidth; h = document.body.clientHeight;}
    }
    //w3c
    else { w = window.innerWidth; h = window.innerHeight; }

    return {width:w,height:h};
};

window.getCorrectOffset = function() {
    var offsetX = 0; var offsetY = 0;

    //IE
    if(!window.pageYOffset) {
        //strict mode
        if(!(document.documentElement.scrollTop == 0)) { offsetY = document.documentElement.scrollTop; offsetX = document.documentElement.scrollLeft; }
        //quirks mode
        else { offsetY = document.body.scrollTop; offsetX = document.body.scrollLeft; }
    }
    //w3c
    else { offsetX = window.pageXOffset; offsetY = window.pageYOffset; }

    return {left:offsetX,top:offsetY};
};

function isScrolledIntoView(elemid) {
    //document
    var w1 = window.getCorrectOffset().top,
        w2 = w1 + window.getCorrectSize().height,
        b1, b2, elem;

    //element
    function offset(elem) {
        if(!elem) elem = this;

        var x = elem.offsetLeft;
        var y = elem.offsetTop;

        while (elem = elem.offsetParent) {
                x += elem.offsetLeft;
                y += elem.offsetTop;
        }

        return { left: x, top: y };
    }

    elem = document.getElementById(elemid);
    if (elem === null) {
        return false;
    }

    b1 = offset(elem).top;
    b2 = b1 + elem.offsetHeight;

    // The visible height of the banner is greater than a specified value
    return (Math.min(b2, w2) - Math.max(b1, w1) > org.af.offset);
}


var checkAdflanVisiblity = function () {
    var adflanBannerId='adflan-banner';

    if ( isScrolledIntoView(adflanBannerId) ) {
        //remove event listener
        try {
            if (!window.removeEventListener) { window.detachEvent('onscroll', checkAdflanVisiblity); }
            else { window.removeEventListener('scroll', checkAdflanVisiblity, false); }
        } catch (e) {}
        try { org.af.onscroll(adflanBannerId); } catch(err) { }
        return true;
    }
    return false;
};

// Placeholder is not initially visible -> event handling
// If visible, will insert banner
if (!checkAdflanVisiblity())  {
    if (!window.addEventListener) { window.attachEvent('onscroll', checkAdflanVisiblity); }
    else { window.addEventListener('scroll', checkAdflanVisiblity, false); }
}