function createRequestObject1() {
    var ro;
    var browser = navigator.appName;
    if(browser == "Microsoft Internet Explorer"){
        ro = new ActiveXObject("Microsoft.XMLHTTP");
    }else{
        ro = new XMLHttpRequest();
    }
    return ro;
}

var http = createRequestObject1();

function sendemail1() {
        var msg = document.contactform1.msg.value;
        document.contactform1.send.disabled=true;
        document.contactform1.send.value='Sending....';

    http.open('get', 'comment_form.php?msg='+msg+'&action=send');
    http.onreadystatechange = handleResponse1;
    http.send(null);
}

function handleResponse1() {
    if(http.readyState == 4){
        var response = http.responseText;
        var update = new Array();

        if(response.indexOf('|' != -1)) {
            update = response.split('|');
            document.getElementById(update[0]).innerHTML = update[1];

        }
    }
}