var http_request = false;

function makeRequest(url) {

		http_request = false;
		
		if (window.XMLHttpRequest) { // Mozilla, Safari,...
				http_request = new XMLHttpRequest();
				if (http_request.overrideMimeType) {
						http_request.overrideMimeType('text/xml');
					
						// See note below about this line
				}
		} else if (window.ActiveXObject) { // IE
				try {
						http_request = new ActiveXObject("Msxml2.XMLHTTP");
				} catch (e) {
						try {
								http_request = new ActiveXObject("Microsoft.XMLHTTP");
						} catch (e) {}
				}
		}
		

		if (!http_request) {
				alert('Seu navegador não suporta AJAX :(');
				return false;
		}
		http_request.onreadystatechange = alertContents;
		http_request.open('GET', url, true);
		http_request.send(null);

}

function alertContents() {
		if (http_request.readyState == 4) {
				if (http_request.status == 200) {
						setContent(http_request.responseText);
				} else {					
						alert('Sem conteudo definido.');
				}
		}

}

function getContent(content) {

  url = "produtos_codigo/"+content+".html";	
	makeRequest(url);
	return false;
}		

function getPortfolio(content) {

  url = "portfolio_codigo/"+content+".html";	
	makeRequest(url);
	return false;
}		

function getServicos(content) {

  url = "servicos_codigo/"+content+".html";	
	makeRequest(url);
	return false;
}

function getDepoimentos(content) {
  url = "depoimentos_codigo/"+content+".html";	
	makeRequest(url);
	return false;
}

function getEquipe(content)	{
	url = "equipe_codigo/"+content+".html";	
	makeRequest(url);
	return false;
}

function setContent(text)	{
		var obj = document.getElementById('center');
		obj.innerHTML = text;
}