calculateSize = function(tamanhoFrame) {
    var layerFrame = document.getElementById('ctl00_layer');
    layerFrame.style.height = tamanhoFrame + 'px';
}

showPopup = function(src) {

    var transp = document.getElementById('transparent');
    var layer = document.getElementById('ctl00_layer'); layer.src = null;
    var transpAnim;
    var layerAnim;
    agt = navigator.userAgent.toLowerCase();

    if (src) {

        layer.src = src;
    }

    var selects = document.getElementsByTagName('select');

    hideContent = function() {

        for (select in selects) {

            try {

                selects[select].style.visibility = 'visible';

            } catch (e) { }
        }

        disableContent();
    };

    disableContent = function() {
        transp.style.display = 'none';
        layer.style.display = 'none';
        layer.src = "";
    };

    setIframeHeight = function() {
        alert("bla");
        layer.style.height = layer.contentWindow.document.documentElement.offsetHeight + 'px';
    };

    if (layer.style.display != 'block') {

        transp.style.height = document.documentElement.clientHeight + 'px';
        if (document.body.clientHeight > 700) {
            transp.style.height = document.body.clientHeight + 'px';
        }
        //Opera
        if (agt.indexOf("opera") != -1) {
            if (document.documentElement.clientHeight > 700) {
                transp.style.height = document.documentElement.clientHeight + 'px'
            }
            else
                transp.style.height = document.document.clientHeight + 'px'
        }

        transp.style.display = 'block';
        layer.style.top = document.documentElement.scrollTop + 40 + 'px';
        //Safari
        if (agt.indexOf("safari") != -1) { layer.style.top = (document.all) ? document.body.scrollLeft : window.pageYOffset + 40 + 'px' }
        layer.style.display = 'block';

        for (select in selects) {

            try {

                selects[select].style.visibility = 'hidden';

            } catch (e) { }
        }
    }
    else
        hideContent();
}