function ajax(tipo,env,div,pagi){
	var pag = false
	if (window.XMLHttpRequest) {
		pag = new XMLHttpRequest()
	}else if (window.ActiveXObject){ 
		try {
			pag = new ActiveXObject("Msxml2.XMLHTTP")
		} 
		catch (e){ 
			try{
				pag = new ActiveXObject("Microsoft.XMLHTTP")
			}
			catch (e){
			}
		}
	}else {
		return false
	}
	if (tipo=="g"){
		pag.onreadystatechange=function(){ 
			if (pag.readyState == 4 && (pag.status==200 || window.location.href.indexOf("http")==-1))
			document.getElementById(div).innerHTML=pag.responseText
		}
		pag.open('GET', pagi, true)
		pag.send(null)

	}else{
		pag.open('POST',pagi, true)
		pag.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
		pag.send(env)
		pag.onreadystatechange=function(){ 
			if (pag.readyState == 4 && (pag.status==200 || window.location.href.indexOf("http")==-1)){
				document.getElementById(div).innerHTML=pag.responseText	;
				if (div=="reg"){
					showRecaptcha('recaptcha_td');
				}
			}
		}
	}
}