function $(element)
{
	if (typeof(element) == 'string')
	{
		element = document.getElementById(element);
	}	
	return element;
}

function switchtemplate(templateId)
{
	var t = $('templateId');
	
	var i = $('img_' + templateId);
	
	var o = $('img_' + t.value);
	
	o.className = "";
	
	i.className = "selected";
	
	t.value = templateId; 
}

var imgCounter = 1;

function addImageField()
{
	var refDiv = $("images");
	
	var imgLabel = document.createElement("label");
	imgLabel["for"] = "img_" + imgCounter;
	var imgLabelText = document.createTextNode("Imagen " + (imgCounter + 1) + ": ");
	imgLabel.appendChild(imgLabelText);
	
	var imgBrowse = document.createElement("input");
	imgBrowse["type"] = "file";
	imgBrowse["name"] = "images[]";
	imgBrowse["size"] = "50";
	imgBrowse["id"] = "img_" + imgCounter;
	
	var imgBr = document.createElement("br");
	
	refDiv.appendChild(imgBr, refDiv);
	refDiv.appendChild(imgLabel, refDiv);
	refDiv.appendChild(imgBrowse, refDiv);
	
	imgCounter++;
	
	imgLabel = null;
	imgLabelText = null;
	imgBrowse = null;
	imgBr = null;
}