function changeHowHeard(el){
    var div=document.getElementById(m_vInternetSourcesID);
    if(!div)return;
    if(el.selectedIndex==1)div.style.display="inline";
    else div.style.display="none";
}
function setMarket(el){
    var hdn=document.getElementById(m_vHdnMarketID);
    if(hdn)hdn.value=el.value;
}