var XMLHttpRequestObject = false;
if (window.XMLHttpRequest)
{
    XMLHttpRequestObject = new XMLHttpRequest();
}
else if (window.ActiveXObject)
{
    XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
}

function getParam(parm, divID)
{ 
    var url = "number.php?&number="+parm;
    url += "&parm2="+new Date().getTime();
    if(XMLHttpRequestObject)
    {
	var obj = document.getElementById(divID);

	XMLHttpRequestObject.open("POST", url);
	XMLHttpRequestObject.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	XMLHttpRequestObject.send(url);
    }
}