function valinume(texto) 
{
    if (isNaN(texto)) return "";
    return texto;
}
function js_redirect(URL) {
    try
    {
        navigate(URL);
    }
    catch(err)
    {
        location=URL;
    }
}
function OpenLiveChat() 
{
    lpButtonCTTUrl = 'http://server.iad.liveperson.net/hc/20692277/?cmd=file&file=visitorWantsToChat&site=20692277&imageUrl=http://www.tradeviewforex.com/images/chat/boton&referrer=' + escape(document.location);
    lpButtonCTTUrl = (typeof (lpAppendVisitorCookies) != 'undefined' ? lpAppendVisitorCookies(lpButtonCTTUrl) : lpButtonCTTUrl);
    window.open(lpButtonCTTUrl, 'chat20692277', 'width=475,height=400,resizable=yes'); 
}