function GetXmlHttpObject()
{ 
var objXMLHttp = false;
try {
  objXMLHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
  try {
    objXMLHttp = new ActiveXObject("Microsoft.XMLHTTP");
  } catch (e2) {
    objXMLHttp = false;
  }
}
if (!objXMLHttp && typeof XMLHttpRequest != 'undefined') {
  objXMLHttp = new XMLHttpRequest();
}
return objXMLHttp
}

function openUrl(url){
	var objxml=GetXmlHttpObject()
	objxml.open("GET",url,false);
	objxml.send();
	retInfo=objxml.responseText;
	if (objxml.status=="200"){
		return retInfo;
		}
	else{
		return "-2";
		}
}

function $(id)
{
	return document.getElementById(id);
}

function $F(id)
{
	return document.getElementById(id).value.trim();
}

function closeWindow()
{
    if(document.all)
	    window.opener=null;
    else
	    window.open('','_parent','');

	window.close();
}