foro20.com

function createXMLHttpRequest(){
    try { return new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) {}
    try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {}
    try { return new XMLHttpRequest(); } catch(e) {}
    alert("XMLHttpRequest no soportado");
    return null;
}

onload=function(){

    if (document.getElementsByClassName == undefined) {
        document.getElementsByClassName = function(className)
        {
            var hasClassName = new RegExp("(?:^|\\s)" + className + "(?:$|\\s)");
            var allElements = document.getElementsByTagName("*");
            var results = [];

            var element;
            for (var i = 0; (element = allElements[i]) != null; i++) {
                var elementClass = element.className;
                if (elementClass && elementClass.indexOf(className) != -1 && hasClassName.test(elementClass))
                    results.push(element);
            }

            return results;
        }
    }

    blocked = 0;
    var ad_nodes = document.getElementsByClassName(ads);
    for(i in ad_nodes){
        if (ad_nodes[i].offsetHeight == 0){
            blocked = 1;
            ad_nodes[i].innerHTML = msg;
        }
    }
}