// javascript AJAX
var peticion = false;
if (window.XMLHttpRequest) {
	peticion = new XMLHttpRequest();
} else if (window.ActiveXObject) {
	peticion = new ActiveXObject("Microsoft.XMLHTTP");
}

function ObtenerDatos(datos,divID) {
	if(peticion) {
		var obj = document.getElementById(divID);
        peticion.open("GET", datos, true);
		peticion.onreadystatechange = function()  {
			if (peticion.readyState == 4) {
			
                /*START Nielsen//NetRatings Event Tracking function */
                _nnEventTrack('http://www.universia.com.br'+datos);
                /*END Nielsen//NetRatings Event Tracking function*/
                
                obj.innerHTML = peticion.responseText;
				//alert(peticion.responseText);
			}
            else if(peticion.readyState==1){
                obj.innerHTML = "<div class='loading'><p><img src='images/loading.gif'/><br />Carregando conteúdo...</p></div>";
            }
        }
		peticion.send(null);
	}
}

function CambiarEstilo(id,seleccionadoSolapa,inactivoSolapa) {

    var elementosMenu = getElementsByClassName(document, "li", seleccionadoSolapa);
	for (var k = 0; k< elementosMenu.length; k++) {
		elementosMenu[k].className = inactivoSolapa;
	}
	var identity=document.getElementById(id);
	identity.className=seleccionadoSolapa;
}

/*
function CambiarEstiloSolapas(id) {
	var elementosMenu = getElementsByClassName(document, "li", "seleccionadoSolapa");
	for (k = 0; k< elementosMenu.length; k++) {
		elementosMenu[k].className = "inactivoSolapa";
	}
	var identity=document.getElementById(id);
	identity.className="seleccionadoSolapa";
}
*/

/*
function getElementsByClassName
Written by Jonathan Snook, http://www.snook.ca/jonathan
Add-ons by Robert Nyman, http://www.robertnyman.com
  */

function getElementsByClassName(oElm, strTagName, strClassName){
	var arrElements = (strTagName == "*" && document.all)? document.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	strClassName = strClassName.replace(/\-/g, "\\-");
	var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
	var oElement;
	for(var i=0; i<arrElements.length; i++){
		oElement = arrElements[i];
		if(oRegExp.test(oElement.className)){
			arrReturnElements.push(oElement);
		}
	}
	return (arrReturnElements)
}

function _nnEventTrack(_nnClickURL){
	
	var _nnCI = "es-universia";

	var _nnCG = "0";

	var _nnCC = "us"; /* country code */

	var _nnLP = location.protocol.indexOf('https')>-1?'https:':'http:';

	var _nnRP = escape(window.location);

	var _nnND = _nnLP + '//secure-' + _nnCC + '.imrworldwide.com/';

	var _nnPixel = new Image(1,1);

	var _nnParams = "rnd=" + (new Date()).getTime() + "&ci=" + _nnCI + "&cg=" + _nnCG;

	_nnParams += "&si=" + escape(_nnClickURL) + "&rp=" + _nnRP;

	_nnPixel.src = _nnND + "cgi-bin/m?" + _nnParams;
}


function changeClassName(V,X){
		document.getElementById(V).className = X;
}


// / javascript AJAX