function change_curse3 () {
    var rim=document.getElementById('bb3_0').innerHTML;
    mir=kurs(rim);    
    document.getElementById('kbb3_0').innerHTML=mir
    
    var rim=RoundX(document.main.bb3_1.value);
    mir=kurs(rim);    
    document.getElementById('kbb3_1').innerHTML=mir
    
    var rim=RoundX(document.main.bb3_2.value);
    mir=kurs(rim);    
    document.getElementById('kbb3_2').innerHTML=mir    

    var rim=RoundX(document.main.bb3_3.value);
    mir=kurs(rim);    
    document.getElementById('kbb3_3').innerHTML=mir

//////////

    var rim=document.getElementById('bl3_0').innerHTML;
    mir=kurs(rim);    
    document.getElementById('kbl3_0').innerHTML=mir
    
    var rim=RoundX(document.main.bl3_1.value);
    mir=kurs(rim);    
    document.getElementById('kbl3_1').innerHTML=mir
    
    var rim=RoundX(document.main.bl3_2.value);
    mir=kurs(rim);    
    document.getElementById('kbl3_2').innerHTML=mir    

    var rim=RoundX(document.main.bl3_3.value);
    mir=kurs(rim);    
    document.getElementById('kbl3_3').innerHTML=mir

//////////

    var rim=document.getElementById('to_bb3').innerHTML;
    mir=kurs(rim);    
    document.getElementById('to_kbb3').innerHTML=mir

    var rim=document.getElementById('to_bl3').innerHTML;
    mir=kurs(rim);    
    document.getElementById('to_kbl3').innerHTML=mir
}