function MM_openBrWindow(theURL, winName, features) { //v2.0
    window.open(theURL,winName,features);

}

var GB_ROOT_DIR = "/greybox/";



function aparece_div(id) {
    if (document.getElementById(id).style.display == 'block') {
        document.getElementById(id).style.display = 'none';
    }
    else {
        document.getElementById(id).style.display = 'block';
    }
}