/*function gera_ajax(){
try{ ajax=new XMLHttpRequest(); }
catch(ee){
    try{ ajax=new ActiveXObject("Msxml2.XMLHTTP"); }
	catch(e){
        try{ ajax=new ActiveXObject("Microsoft.XMLHTTP"); }
		catch(E){ ajax=false;}}} return ajax; }*/

function calendario(){
		if(document.frm3.cboa.value!="" && document.frm3.cbom.value!="" && document.frm3.cbod.value!=""){
			var data=document.frm3.cboa.value+"-"+document.frm3.cbom.value+"-"+document.frm3.cbod.value;
			var periodos=document.getElementById('periodos');
			var n=Math.random();
			var ajax=gera_ajax();
			ajax.open("GET","auditorio_query.php?data="+data+"&n="+n,true);
			ajax.onreadystatechange=function(){
				if(ajax.readyState==4 && ajax.status==200){ periodos.innerHTML=unescape(ajax.responseText); }
				else{ periodos.innerHTML="<center><font color='#FF0000'><b>Aguarde...</b></font></center>";	}}
			ajax.send(null);}}