document.getElementById("USD").innerHTML=;
document.getElementById("RUR").innerHTML=;
document.getElementById("EUR").innerHTML=;

document.getElementById("curr_from").options[1].value=;
document.getElementById("curr_from").options[2].value=;
document.getElementById("curr_from").options[3].value=;

document.getElementById("curr_to").options[1].value=;
document.getElementById("curr_to").options[2].value=;
document.getElementById("curr_to").options[3].value=;

document.getElementById('weatheryahoo').innerHTML=''