function Abrir(theURL) {
	var leftmargin = (screen.width - 500) / 2;
	var topmargin = (screen.height - 450) / 2;
	var features = 'width=520,height=450,scrollbars=yes';
	features=features + ',top=' + topmargin + ',left='+ leftmargin
	  window.open(theURL,'Productos',features);
}

function irA(elemID) 
{
    var offsetTrail = document.getElementById(elemID);
    var offsetLeft = 0;
    var offsetTop = 0;
    while (offsetTrail) 
    {
        offsetLeft += offsetTrail.offsetLeft;
        offsetTop += offsetTrail.offsetTop;
        offsetTrail = offsetTrail.offsetParent;
    }
    if (navigator.userAgent.indexOf("Mac") != -1 && typeof document.body.leftMargin != "undefined" && navigator.appName=="Microsoft Internet Explorer" ) 
    {
        offsetLeft += parseInt(document.body.leftMargin);
        offsetTop += parseInt(document.body.topMargin);
    }
    window.scrollTo(offsetLeft,offsetTop)
}



function cambiaLinks(){
	var links = document.getElementsByTagName('a');
	for (var i=0;i < links.length;i++) {
		if (links[i].rel == 'external') {
			links[i].onclick = function() { window.open(this.href); return false;};
		}
		if (links[i].rel == 'galeria') {
			links[i].onclick = function(event) { 
				$('foto-ampliada').src=this.href;
				irA('foto-ampliada');
				return false;
			};
		}
	}
}