var bustcachevar=1; //bust potential caching of external pages after initial request? (1=yes, 0=no)
var loadedobjects="";
var rootdomain="http://"+window.location.hostname;
var bustcacheparameter="";

function ajaxpage(url, containerid){
	var page_request = false;
	if (window.XMLHttpRequest) // if Mozilla, Safari etc
		page_request = new XMLHttpRequest();
	else if (window.ActiveXObject){ // if IE
		try {
			page_request = new ActiveXObject("Msxml2.XMLHTTP");
		} 
		catch (e){
			try{
				page_request = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e){}
		}
	}
	else
		return false;
	page_request.onreadystatechange=function(){
		loadpage(page_request, containerid);		
	}
	page_request.open('GET', url, true);
	page_request.send(null);
}

function loadpage(page_request, containerid){
	if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
		document.getElementById(containerid).innerHTML=page_request.responseText;
}

function loadobjs(){
	if (!document.getElementById)
		return;
	for (i=0; i<arguments.length; i++){
		var file=arguments[i];
		var fileref="";
		if (loadedobjects.indexOf(file)==-1){ //Check to see if this object has not already been added to page before proceeding
			if (file.indexOf(".js")!=-1){ //If object is a js file
				fileref=document.createElement('script');
				fileref.setAttribute("type","text/javascript");
				fileref.setAttribute("src", file);
			}
			else if (file.indexOf(".css")!=-1){ //If object is a css file
				fileref=document.createElement("link");
				fileref.setAttribute("rel", "stylesheet");
				fileref.setAttribute("type", "text/css");
				fileref.setAttribute("href", file);
			}
		}
		if (fileref!=""){
			document.getElementsByTagName("head").item(0).appendChild(fileref);
			loadedobjects+=file+" "; //Remember this object as being already added to page
		}
	}
}


function goTo(url){
	ajax_loadContent('content',url);
}

function criaXMLHttp() {

	if (typeof XMLHttpRequest != "undefined")

		return new XMLHttpRequest();

	else if (window.ActiveXObject){

		var versoes = ["MSXML2.XMLHttp.5.0","MSXML2.XMLHttp.4.0", "MSXML2.XMLHttp.3.0","MSXML2.XMLHttp", "Microsoft.XMLHttp"];

	}

	for (var i = 0; i < versoes.length; i++){

		try{

			return new ActiveXObject(versoes[i]);

		}catch (e) {}

	}

	throw new Error("Seu browser nao suporta AJAX");

}

function isEmail(string) {
  if(string !=""){
    if (string.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)
      return true;
    else
      return false;
  }
  else{
    return true;
  }
}

function trim(str)
{
	return str.replace(/^\s+|\s+$/g,"");
}


function enviarnovidade() {
	 if ((trim(document.frmnovidades.nome.value) == "")||(trim(document.frmnovidades.nome.value) == "nome")){

					alert('Informe seu nome.');
					document.frmnovidades.nome.value = '';
					document.frmnovidades.nome.focus();

					return false;

	 }else  if ((trim(document.frmnovidades.email.value) == "")||(trim(document.frmnovidades.email.value) == "e-mail")){

					alert('Informe seu email.');
					document.frmnovidades.email.value = '';
					document.frmnovidades.email.focus();

					return false;

	 }else{

					var url = "../includes/enviaremail.php";

					var params = "nome="+document.frmnovidades.nome.value+"&email="+document.frmnovidades.email.value;

					var http = criaXMLHttp();

					var divInfo = document.getElementById("novidades");

					http.open("POST", url, true);

					//Send the proper header information along with the request

					http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");

					http.setRequestHeader("Content-length", params.length);

					http.setRequestHeader("Connection", "close");

					

					http.onreadystatechange = function() {//Call a function when the state changes.

					if(http.readyState == 4 && http.status == 200) {

						divInfo.innerHTML = http.responseText;

					}

					}

					http.send(params);	

	}
}

function validaenquete() {
	
	var envia = 1;
	 if (trim(document.frmenquete.escolha.value) == ""){
					alert('Escolha sua resposta.');
					envia = 0;
					return false;
	 }else{
		 if(envia == 1){
		document.getElementById('botoes').style.display = 'none';
		document.getElementById('divmsg').style.display='';
		 }
		var url = "../includes/validavoto.php";
		
		var params = "escolha="+document.frmenquete.escolha.value;
		
		var http = criaXMLHttp();
		
		var divInfo = document.getElementById("enquete");
		
		http.open("POST", url, true);
		
		//Send the proper header information along with the request
		
		http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		
		http.setRequestHeader("Content-length", params.length);
		
		http.setRequestHeader("Connection", "close");
		
		
		
		http.onreadystatechange = function() {//Call a function when the state changes.
		
		if(http.readyState == 4 && http.status == 200) {
		
		divInfo.innerHTML = http.responseText;
		
		}
		
		}
		
		http.send(params);	

	}

}