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



function menup(estat){	
	oXML = AJAXCrearObjeto();
	oXML.open('get', 'modiestatmenu.php?estat='+estat);
	oXML.send('');
}