function VTG_OptIn(){
    // Object variables
	this.FormId = "";
	this.Key = "";
	this.SubmitType = "ajax";
	this.SuccessRedirect = "";
	this.ErrorRedirect = "";
	this.Debug = false;
	this.Callback = "";
	this.FormAttribute = "vtid";
	this.ListId = new Array();
	this.KeepList = 1;
}
function VTG_GetFields()
{
	var campos = new Array();
	var form = document.getElementById(this.FormId);
	var total = 0;
	
	for (i = 0; i < form.elements.length; i++)
	{
		if (form.elements[i].getAttribute(this.FormAttribute) != null)
		{			
			switch(form.elements[i].getAttribute("type"))
			{
				case 'button':
					break;
				case 'submit':
					break;
				case 'reset':
					break;
				case 'radio':
					if (form.elements[i].checked == true)
					{
						campos[total] = new Array();
						campos[total]['tag'] = form.elements[i].getAttribute(this.FormAttribute);
						campos[total]['value'] = form.elements[i].value;
						total++;
					}
					break;
				case 'checkbox':
					if (form.elements[i].checked == true)
					{
						campos[total] = new Array();
						campos[total]['tag'] = form.elements[i].getAttribute(this.FormAttribute);
						campos[total]['value'] = form.elements[i].value;
						total++;
					}
					break;
				default:
					campos[total] = new Array();
					campos[total]['tag'] = form.elements[i].getAttribute(this.FormAttribute);
					campos[total]['value'] = form.elements[i].value;
					total++;
					break;
			}
		}
	}
	
	return campos;
}
function VTG_Verify()
{
	return true;
}
function VTG_SubmitForm()
{
	frm = document.getElementById(this.FormId);
	
	iptKey = document.createElement("input");
	iptKey.setAttribute("type", "hidden");
	iptKey.setAttribute("name", "VTGChave");
	iptKey.setAttribute("value", this.Key);
	
	iptType = document.createElement("input");
	iptType.setAttribute("type", "hidden");
	iptType.setAttribute("name", "VTGTipo");
	iptType.setAttribute("value", this.SubmitType);
	
	if (this.SuccessRedirect != "")
	{
		iptSuccess = document.createElement("input");
		iptSuccess.setAttribute("type", "hidden");
		iptSuccess.setAttribute("name", "successRedirect");
		iptSuccess.setAttribute("value", this.SuccessRedirect);
	} else {
		alert("Página de redirecionamento não encontrada.");
		return false;
	}
	
	if (this.ErrorRedirect != "")
	{
		iptError = document.createElement("input");
		iptError.setAttribute("type", "hidden");
		iptError.setAttribute("name", "errorRedirect");
		iptError.setAttribute("value", this.ErrorRedirect);
	} else {
		alert("Página de redirecionamento não encontrada.");
		return false;
	}
	
	iptDebug = document.createElement("input");
	iptDebug.setAttribute("type", "hidden");
	iptDebug.setAttribute("name", "VTGDebug");
	iptDebug.setAttribute("value", this.Debug);
	
	for (i = 0; i < this.ListId.length; i++)
	{
		iptLista = document.createElement("input");
		iptLista.setAttribute("type", "hidden");
		iptLista.setAttribute("name", "VTGListas[]");
		iptLista.setAttribute("value", parseInt(this.ListId[i]));
		
		frm.appendChild(iptLista);
	}
	
	frm.appendChild(iptKey);
	frm.appendChild(iptType);
	frm.appendChild(iptSuccess);
	frm.appendChild(iptError);
	frm.appendChild(iptDebug);
	frm.action = document.location.protocol + "//gadgets.virtualtarget.com.br/index.dma/OptIn";
	
	frm.submit();
}
function VTG_SubmitAjax()
{
	frm = document.getElementById(this.FormId);
	
	var campos = this.VTG_GetFields();
	var param = "";
	
	for (i = 0; i < this.ListId.length; i++)
	{
		param += "VTGListas[]=" + parseInt(this.ListId[i]) + "&";
	}
	
	for (i = 0; i < campos.length; i++)
	{
		param += escape(campos[i]['tag'].toLowerCase()) + "=" + escape(campos[i]['value']) + "&";
	}
	
	param += "VTGKeepList=" + this.KeepList + "&VTGChave=" + this.Key + "&VTGDebug=" + this.Debug + "&VTGTipo=ajax";
	
	scr = document.createElement("script");
	scr.setAttribute("src", document.location.protocol + "//gadgets.virtualtarget.com.br/index.dma/OptIn?" + param);
	scr.setAttribute("type", "text/javascript");
	scr.setAttribute("id", "VTGScript");
	
	frm.appendChild(scr);
}

function VTG_Submit()
{
	if (document.getElementById(this.FormId) != undefined)
	{
		if (this.VTG_Verify())
		{	
			if (this.SubmitType == "form")
			{
				this.VTG_SubmitForm();
			} else if (this.SubmitType == "ajax") {
				this.VTG_SubmitAjax();
			} else {
				alert("Atributo SubmitType inválido.");
			}
		}
	} else {
		alert("Atributo FormId ("+ this.FormId + ") inválido.");
	}
}

// Definitions
VTG_OptIn.prototype.VTG_Submit = VTG_Submit;
VTG_OptIn.prototype.VTG_SubmitForm = VTG_SubmitForm;
VTG_OptIn.prototype.VTG_SubmitAjax = VTG_SubmitAjax;
VTG_OptIn.prototype.VTG_Verify = VTG_Verify;
VTG_OptIn.prototype.VTG_GetFields = VTG_GetFields;

// Start object
VTG = new VTG_OptIn();