function GetXMLHttp() {   
    if (navigator.appName == "Microsoft Internet Explorer") {   
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");   
    } else {   
        xmlHttp = new XMLHttpRequest();
	}
    return xmlHttp;   
}   
var mod = GetXMLHttp(); 

function tiraAcento(text) { 
  text = text.replace(new RegExp('[""]','gi'), ''); 
  text = text.replace(new RegExp('\n','gi'), '');
  text = text.replace(new RegExp(' ','gi'), '');

  return text; 
} 

//conteudo
  
function alimentarCombo(valor) {
	setTimeout(ver,300);
	mod.open("GET", "cidades.php?listestado="+valor+"&rand=" + Math.random()+"", true);   
    mod.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	mod.setRequestHeader("Content-Type", "text/html");
	mod.setRequestHeader("Content-Type", "charset=utf-8");
    mod.onreadystatechange = function() {
		if (mod.readyState == 4) {
		document.getElementById("cid").innerHTML=mod.responseText;
		}
		};   
    mod.send(null);  
	
}