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

var http = createRequestObject();
var colab = colab;

function sndReq(action) {
	var link = link;
	colab = colab;
	var ts = (new Date()).getTime();
	http.open('get', colab + '=' + ts + '&action='+action);
    http.onreadystatechange = handleResponse;
    http.send(null);
}

function handleResponse() {
    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];
        }
    }
}