function postDataReturnText(url, data,id_div, callback)
{
var XMLHttpRequestObject = false;
if (window.XMLHttpRequest) {
XMLHttpRequestObject = new XMLHttpRequest();
} else if (window.ActiveXObject) {
XMLHttpRequestObject = new
ActiveXObject("Microsoft.XMLHTTP");
}
if(XMLHttpRequestObject) {
XMLHttpRequestObject.open("POST", url);
XMLHttpRequestObject.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
XMLHttpRequestObject.onreadystatechange = function()
{
if (XMLHttpRequestObject.readyState == 4 && XMLHttpRequestObject.status == 200) {
callback(XMLHttpRequestObject.responseText,id_div);
delete XMLHttpRequestObject;
XMLHttpRequestObject = null;
}
else
{
document.getElementById(id_div).innerHTML ='<p align=center><img src=script/ajax-loader.gif></p>';
}

}
XMLHttpRequestObject.send(data);
}
}