function ampliarFoto(a, id, w, h)
{
var screenFactor = .75;
var sw = screen && screen.width > 0 ? screen.width : 1024;
var sh = screen && screen.height > 0 ? screen.height : 768;
var factor = Math.min(sw / w, sh / h) * screenFactor;
var ww = Math.min(w, Math.round(w * factor));
var hh = Math.min(h, Math.round(h * factor));
var margin = 5;
var S = "";
S += "";
S += ""+a.getAttribute("title")+"";
S += "";
S += "";
S += "![](proimg.php/id"+id+"/w"+ww+"/h"+hh+")
";
S += "";
S += "";
var win = window.open("about:blank", "_blank", [
"width="+(ww + margin*2),
"height="+(hh + margin*2),
"top="+(.75 * (sh - (hh+margin*2)) / 2),
"left="+((sw - (ww+margin*2)) / 2),
"resizable=no",
"directories=no",
"location=no",
"menubar=no",
"status=no",
"titlebar=no",
"toolbar=no"
].join(","));
win.document.open("text/html");
win.document.write(S);
win.document.close();
return false;
}