function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function correctPNG() 
{
	for(var i=0; i<document.images.length; i++)
	  {
		  var img = document.images[i]
		  var imgName = img.src.toUpperCase()
		  
	 	 if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
		 {
			 var imgID = (img.id) ? "id='" + img.id + "' " : ""
			 var imgClass = (img.className) ? "class='" + img.className + "' " : ""
			 var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
			 var imgStyle = "display:inline-block;" + img.style.cssText 
			 if (img.align == "left") imgStyle = "float:left;" + imgStyle
			 if (img.align == "right") imgStyle = "float:right;" + imgStyle
			 if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle		
			 var strNewHTML = "<span " + imgID + imgClass + imgTitle
			 + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
			 + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
			 + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" 
			 img.outerHTML = strNewHTML
			 i = i-1
		 }
  }
}

function hidestatus(){window.status='';return true;}

if (document.layers)
	document.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);

document.onmouseover=hidestatus;
document.onmouseout=hidestatus;
document.onclick=hidestatus;


function roll(obj, img_src)
{
	obj.src = img_src;
}

function validaMail(email)
{
	var valid=true;
	var em=/^[^ @]+@[^ @]+\.[a-zA-Z]+$/;
	
	if(!(em.test(email)))
		return false;
	
	return true;
}

function validaPass(pass)
{
	var valid=true;
	var em=/^[a-zA-Z0-9@]{5,50}$/;

	if(!(em.test(pass)))
		return false;
	
	return true;
}

function sonumeros(e)
{
	var k;
	if(e)
		k=e.which;
	else
		k=window.event.keyCode;
	
	if( (k<49 || k>57) && k!=48  && k!=8 && k!=0) 
	{
		if(e)
			return false;
		else
			window.event.returnValue=false;
	}
}

function getCheckedValue(radioObj) 
{
	if(!radioObj)
		return "";
		
	var radioLength = radioObj.length;
	
	if(radioLength == undefined)
	{
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
	}
	
	for(var i = 0; i < radioLength; i++) 
	{
		if(radioObj[i].checked)
			return radioObj[i].value;
	}
	return "";
}

function getCheckedValueVaga(chkObj) 
{
	if(!chkObj)
		return "";
		
	var chkLength = chkObj.length;
	var chkValue = chkObj.value;

	if (chkValue>0)
	{
		if (chkObj.checked==true)
			return chkObj.value;
		else
			return false;
	}
	
	for(var i = 0; i < chkLength; i++) 
	{
		if(chkObj[i].checked)
			return chkObj[i].value;
	}
	return "";
}

function isInteger(s)
{   var i;
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function popUp(url, titulo, largura, altura)
{
	x = screen.availWidth/2 - largura/2;
	y = screen.availHeight/2 - altura/2;
	window.open(url, titulo, "top=" + y + ", left=" + x + ", width=" + largura + ",height=" + altura + ",scrollbars=yes");
}

function popUpSeal(url) {
  MCSeal=window.open(url, "win", 'toolbar=0, location=0, directories=0, status=1, menubar=1, scrollbars=1, resizable=1, width=615, height=457');
  self.name = "mainWin";
}

function alteraTexto(obj, texto)
{
	if(obj.value=='produtos' || obj.value=='')
		obj.value=texto;	
}

function adicionarFavoritos()
{
        title = document.title;
	url = window.location.href;

	if (window.sidebar) { // Mozilla Firefox Bookmark
	window.sidebar.addPanel(title, url,"");
	} else if( window.external ) { // IE Favorite
	window.external.AddFavorite( url, title); }
	else if(window.opera && window.print) { // Opera Hotlist
	return true; }
}

// validacoes das paginas iniciais 
function validaPesquisa()
{
	var frm=document.frmPesquisa;
	
	if(frm.txtPesq.value=='produtos')
		frm.txtPesq.value="";

	if(frm.txtPesq.value.length>=2)
		return true;
	else
	{
		alert("A pesquisa necessita de pelo menos dois caracteres.");
		frm.txtPesq.focus();
		return false;
	}
}

function validaNewsLetter()
{
	var frm=document.frmNewsletter;
	if(validaMail(frm.emailNewsletter.value))
	{
		if(confirm("Deseja adicionar o email ŕ nossa mailling list?"))
			return true;
		return false;
	}
	else
	{
		alert('Por favor preencha com um email válido');
		frm.emailNewsletter.focus();
		return false;
	}
}

function addCarrinho(id)
{
	var frm=document.frmAddProduto;
	frm.prodId.value=id;
	frm.submit();
}

function validaLoginApp(action)
{
 	if (document.frmInformacoesLojaE.login1.value==2)
 	{
 		document.frmInformacoesLojaE.action = action;
		document.frmInformacoesLojaE.submit();
	}
	else
		alert("Para aceder a esta funcionalidade é necessário ser um utilizador registado e efectuar o login no site com os dados do seu registo.");
}

function mudaClasse(obj, novaClasse)
{
	obj.className=novaClasse;
}

function mudaClasseDiv(divID, novaClasse)
{
 var d1 = document.getElementById(divID);
 d1.className=novaClasse;
}

function cl_mudaClasse(divID)
{
	var e1 = document.getElementById(divID);

	if (e1.className == 'cl_hidden')
	{ 
		e1.className='cl_unhidden';
	}else{
		e1.className='cl_hidden';
	}
}