function limpaCampo(fld, msg, ac) {
	if ($(fld).value == msg && ac == 1)
		$(fld).value = "";
	if ($(fld).value == "" && ac == 0)
		$(fld).value = msg;
}

function addEvent(obj,type,fn){
	if(obj.addEventListener)obj.addEventListener(type,fn,true)
	if(obj.attachEvent)obj.attachEvent("on"+type,fn)
}

/*** MAILING ***/
function cadastraMailing(email) {
	if (email == "Digite aqui seu e-mail")
		email = "";
	layer = 'status_mailing';
	$('bt_mailing').focus();
	$(layer).innerHTML = "<p>Carregando...</p>";
	Element.show(layer);
	var url = "/home/mailing/incluirAjax";
	var params = "email_mailing=" + email;
	var ajax = new Ajax.Request(url, {
					method: 'post',
					parameters:params,
					asynchronous:true, 
					onSuccess:function(t) {
							$(layer).innerHTML = "<p>" + t.responseText + "</p><a href=\"?PHPSESSID=9469f65b4727d242b7fa18977009a9d4#\" class=\"bt_fechar\">fechar</a>"; 
							Element.show(layer);
							if (t.responseText.search(/sucesso/i) != -1) {
								$('email_mailing').value = "";
							}
						}});
}


/****** OVERLAY ******/
function addOverlay() {
	var objBody = document.getElementsByTagName("body").item(0);
	var objOverlay = document.createElement("div");
	objOverlay.setAttribute('id','overlay');
	objOverlay.style.display = 'none';
	objBody.appendChild(objOverlay);
}
function startOverlay() {
	if ($('overlay')) {
		var arrayPageSize = getPageSize();
		$('overlay').style.height = arrayPageSize[1] +"px";
		Effect.BlindDown('overlay', { duration:0.3 });
	}
}
function toggleObjOverlay(ac, obj) {
	if (ac == 1) {
		hideSelects();
		startOverlay();
		Effect.Appear(obj, { duration:0.3, delay:0.3 });
	}
	else {
		Effect.Fade(obj, { duration:0.3 })
		Effect.BlindUp('overlay', { duration:0.3, delay:0.3 });
		setTimeout("showSelects()",600);
	}
}

function hideSelects(){
	var oSelects=document.getElementsByTagName("select");
	for(var i=0;i < oSelects.length;i++)
		oSelects[i].style.display = "none";
}
function showSelects(){
	var oSelects=document.getElementsByTagName("select");
	for(var i=0;i < oSelects.length;i++)
		oSelects[i].style.display = "";
		//oSelects[i].className=oSelects[i].className.replace(" hide","");
}
/****** FIM OVERLAY ******/

function getPageScroll(){

	var yScroll;
	var xScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
		xScroll = self.pageXOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
		xScroll = document.documentElement.scrollLeft;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
		xScroll = document.body.scrollLeft;
	}

	arrayPageScroll = new Array(xScroll,yScroll) 
	return arrayPageScroll;
}

function getHeightElement(el) {
	if (el.innerHeight) {	
		return el.innerHeight;
	} else if (el.offsetHeight){ // all but Explorer Mac
		return el.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		return el.offsetHeight;
	}
}

function getPageSize(){
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}

	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}
function url_encode(str) { 
    var hex_chars = "0123456789ABCDEF"; 
    var noEncode = /^([a-zA-Z0-9\_\-\.])$/; 
    var n, strCode, hex1, hex2, strEncode = ""; 

    for(n = 0; n < str.length; n++) { 
        if (noEncode.test(str.charAt(n))) { 
            strEncode += str.charAt(n); 
        } else { 
            strCode = str.charCodeAt(n); 
            hex1 = hex_chars.charAt(Math.floor(strCode / 16)); 
            hex2 = hex_chars.charAt(strCode % 16); 
            strEncode += "%" + (hex1 + hex2); 
        } 
    } 
    return strEncode; 
} 

// url_decode version 1.0 
function url_decode(str) { 
    var n, strCode, strDecode = ""; 

    for (n = 0; n < str.length; n++) { 
        if (str.charAt(n) == "%") { 
            strCode = str.charAt(n + 1) + str.charAt(n + 2); 
            strDecode += String.fromCharCode(parseInt(strCode, 16)); 
            n += 2; 
        } else { 
            strDecode += str.charAt(n); 
        } 
    } 
    return strDecode; 
}

function decodeText(txt) {
	txt = txt.replace(/\+/g," ");
	return unescape(txt);
}


function createExternalLinks() {
    if(document.getElementsByTagName) {
        var anchors = document.getElementsByTagName('a');
        for(var i=0; i < anchors.length; i++) {
            var anchor = anchors[i];
            if(anchor.getAttribute("href") && anchor.getAttribute('rel')=='externo') { // <-- É necessário inserir rel="externo" no link
                anchor.target = '_blank';
               	//var title = anchor.title + ' (Este link abre uma nova janela)'; // <-- Insere este texto no final do Title do link
                //anchor.title = title;
            }
        }
    }
}

function addPopup() {
	var objBody = document.getElementsByTagName("body").item(0);
	var objPopup = document.createElement("div");
	objPopup.setAttribute('id','popup_blind');
	objPopup.style.display = 'none';
	objPopup.innerHTML = '<a href="http://www.votenascataratas.com/" rel="externo" class="cataratas"><img src="/imagens/sazonais/banner-cataratas.jpg" alt="Cataratas do Iguaçu, vote nesta maravilha" /></a><a href="http://www.new7wonders.com/" rel="externo" class="pantanal"><img src="/imagens/sazonais/banner-pantanal.jpg" alt="Pantanal, vote nesta maravilha" /></a><a href="#" onclick="toggleObjOverlay(0,\'popup_blind\');return false;" class="bt_fechar">fechar</a>';
	objBody.appendChild(objPopup);
}
function startPopup() {
	addOverlay();
	addPopup();
	createExternalLinks();
	toggleObjOverlay(1, 'popup_blind');
}

function loadLastPost() {
	var url = "../blog-home.php";
	var params = "";
	
	var ajax = new Ajax.Request(url, { method:'post', parameters:params, asynchronous:true,
					onComplete:function(t) {
						$('post').innerHTML = t.responseText;
					}});
}

window.onload = function() {
	createExternalLinks();
	if ($('b_home') && $('post')) {
		loadLastPost();
	}
}