function externalLinks() 
{
	if (!document.getElementsByTagName) 
		return;
	var anchors = document.getElementsByTagName("a");
	for (var i=0; i < anchors.length; i++) 
	{
		var anchor = anchors[i];
		if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external")
			anchor.target = "_blank";
	}
}

var Site = {
	start: function()
	{		
		if ($('banner')) Swf.banner("images/banner.swf", "banner", "770", "140");
		if ($('btn-atras'))
		{
			$('evt-prod').addEvent('click', function(e)
			{
				e = new Event(e);
				e.stop();
				window.history.back();
			})
		};
		externalLinks();
	}
};

var Swf = {
	banner: function( swf, target, w, h )
	{
		var oSWF = new SWFObject( swf, "swf" + target, w, h, "8" );
		oSWF.addParam("scale", "noscale");
		oSWF.addParam("wmode", "transparent");
		oSWF.write(target);		
	}
}


window.addEvent('load', Site.start);