function load(url,tag,query){
if(!query)query='';
document.getElementById(tag).innerHTML='<b>Запрос обрабатывается.</b><br><img src="/_img/loading.gif" border=0>';
var req = window.XMLHttpRequest?
new XMLHttpRequest() :
new ActiveXObject("Microsoft.XMLHTTP");
req.onreadystatechange = function() {
if(req.readyState == 4)document.getElementById(tag).innerHTML=req.responseText;
}
req.open("POST", url, true);
req.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
req.setRequestHeader("Content-Length",query.length);
req.send(query);
}