// JavaScript Document
	// AJAX
    function makeRequest(url, metodo, paramPost) {

        var http_request = false;
        var vparamPost;
        
		if (window.XMLHttpRequest){
			try{
				http_request = new XMLHttpRequest();
			}catch(e){
				http_request = false;
			}
		}else if(window.ActiveXObject){
			try{
				http_request = new ActiveXObject("Msxml2.XMLHTTP");
			}catch(e){
				try{
					http_request = ActiveXObject("Microsoft.XMLHTTP");
				}catch(E){
					http_request = false;
				}
			}
		}
        if (!http_request) {
            alert('Erro :(');
            return false;
        }
        
        if (metodo == "POST"){
			vparamPost = paramPost
			http_request.open('POST', url, false);
			/*http_request.setRequestHeader("contentType='text/html; charset=ISO-8859-1'", "application/x-www-form-urlencoded");*/
			http_request.setRequestHeader("content-Type", "application/x-www-form-urlencoded");			
        }
        else{
			vparamPost = ""
			http_request.open('GET', url, false);			
		}
		http_request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
		http_request.setRequestHeader("Cache-Control", "no-store, no-cache, must-revalidate");
		http_request.setRequestHeader("Cache-Control", "post-check=0, pre-check=0");
		http_request.setRequestHeader("Pragma", "no-cache");
        http_request.onreadystatechange = function() { 
			if (http_request.readyState == 4) {
				if (http_request.status == 200) {
					//alert(http_request.responseText);
				} else {
					alert('Houve um problema com a pesquisa');
				}
	        }
		}
		http_request.send(vparamPost);
		
		texto = http_request.responseText;
		texto = texto.replace(/\+/g," ");
		texto = unescape(texto);
		return texto;
    }