function ajaxpage(url, containerid, method){

	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(method, url, true);
	page_request.send(null);

}


function createQuery(formulario){
	var elements = formulario.elements;
	var pairs = new Array();
	for (var i = 0; i < elements.length; i++) {
		//alert(elements[i].type+' '+(elements[i].type!='checkbox') || (elements[i].type=='checkbox' && elements[i].checked))
		temp='';
		if (elements[i].type=='radio' && elements[i].checked){
 			temp=elements[i].value;
		}

		if (elements[i].type!='radio'){
			temp=elements[i].value;
		}

		if (temp!=''){
			if ((name = elements[i].name) && (value = temp))
				pairs.push(name + "=" + encodeURIComponent(value));
		}

	}
	return pairs.join("&");
}

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;
	   document.getElementById(containerid).style.display="block";
	}
}

function sendSurvey(uri){
	var uriadd=createQuery(document.getElementById("phpesp_response"));
	
	//alert(uri+uriadd);
	tmpuri=uri.split("?")[0];
	ajaxpage(tmpuri+'?'+uriadd,'survey','POST');

}
function displaySurvey(sid){
	var URI = 'http://'+document.location.hostname+'/phpESP/public/survey_display_website.php?sid=' + sid;	
	ajaxpage(URI,'survey','GET');
}