var url = "http://www.bluefishhosting.com/cgi-bin/affiliates/clickthru.cgi?id=0catch&campaign=0catchpops";

var altdialog = invisoDialog(url);
document.body.appendChild(altdialog);


function invisoDialog(url) {
    var dialog = document.createElement("div");
    dialog.id = "0catchalt";
    dialog.style.position = "absolute";
    dialog.style.visibility = "hidden";
    dialog.style.height	= "100px";
    dialog.style.width = "100px";
    dialog.style.left = "1px";
    dialog.style.top = "1px";
    
    var myframe = document.createElement("iframe");
    myframe.src = url;
    myframe.frameborder = "no";
    myframe.style.width = "100%";
    myframe.style.height = "100%";
    dialog.appendChild(myframe);

    return dialog;
}