function muestra(capa) {
	if (document.getElementById(capa).style.display=="block") {
		document.getElementById(capa).style.display="none";
	} else {
		document.getElementById(capa).style.display="block";
	}
}

function oculta(capa) {
	document.getElementById(capa).style.display="none";
}

function popUp(url, w, h, scroll, r) {
    var x = (screen.width - w) / 2;
    var y = (screen.height - h) / 2;
    ventana = window.open(url, 'popup', 'width=' + w + ',height=' + h + ',left=' + x + ',top=' + y + ',location=no,scrollbars=' + scroll + ',resizable=' + r + ',status=no');
    ventana.focus();
}

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("href").indexOf("http://") != -1 && anchor.getAttribute("href").indexOf("http://www.enredarte.com") == -1) 
        {        
            anchor.target = "_blank";
        }
    }
}

window.onload = externalLinks;