_ge=function(a){return document.getElementById?document.getElementById(a):null}
_trim=function(a){return a.replace(/^\s*|\s*$/g,"")}

function _gxh(){
	var a=null;
	if(window.ActiveXObject){
		a=new ActiveXObject("Msxml2.XMLHTTP");
		if(!a){a=new ActiveXObject("Microsoft.XMLHTTP");}}
	else if(window.XMLHttpRequest){a=new XMLHttpRequest;}
	return a;}

function _sdx(a,b,c,d,e){
	var f=_gxh();
	if(!d)d=null;
	f.open(d?"POST":"GET",a,e);
	if(b){f.onreadystatechange=function(){
		if(f.readyState==4){b(c&&f.responseXML?f.responseXML:f.responseText);}}}
	f.send(d);
}