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

function enviarForm(str){
	//
	var ajax=nuevoAjax();
	var capa=document.getElementById('resultatsForm');
	//
	//capa.className = "errorFormDIV";	
	capa.innerHTML = "<img src='rcs_gen/preload_ajax.gif' width='24' height='24'>";	
	//
	ajax.open("POST", "validar_usuari_proces.php", true);
	ajax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	ajax.send(str);

	ajax.onreadystatechange=function(){
		if (ajax.readyState==4){
			if (ajax.responseText == "ok"){
				//capa.className = "";
				//capa.innerHTML = "<span class=tit>Dades Correctes<br>Activant...</span>";
				document.location.reload();
			} else {
				capa.innerHTML = ajax.responseText;
			}
		}
	}
	
}