function change_curse2 () {
    var rim=document.getElementById('bb2_0').innerHTML;
    mir=kurs(rim);    
    document.getElementById('kbb2_0').innerHTML=mir
    
    var rim=RoundX(document.main.bb2_1.value);
    mir=kurs(rim);    
    document.getElementById('kbb2_1').innerHTML=mir
    
    var rim=RoundX(document.main.bb2_2.value);
    mir=kurs(rim);    
    document.getElementById('kbb2_2').innerHTML=mir    

    var rim=RoundX(document.main.bb2_3.value);
    mir=kurs(rim);    
    document.getElementById('kbb2_3').innerHTML=mir

//////////

    var rim=document.getElementById('bl2_0').innerHTML;
    mir=kurs(rim);    
    document.getElementById('kbl2_0').innerHTML=mir
    
    var rim=RoundX(document.main.bl2_1.value);
    mir=kurs(rim);    
    document.getElementById('kbl2_1').innerHTML=mir
    
    var rim=RoundX(document.main.bl2_2.value);
    mir=kurs(rim);    
    document.getElementById('kbl2_2').innerHTML=mir    

    var rim=RoundX(document.main.bl2_3.value);
    mir=kurs(rim);    
    document.getElementById('kbl2_3').innerHTML=mir

//////////

    var rim=document.getElementById('to_bb2').innerHTML;
    mir=kurs(rim);    
    document.getElementById('to_kbb2').innerHTML=mir

    var rim=document.getElementById('to_bl2').innerHTML;
    mir=kurs(rim);    
    document.getElementById('to_kbl2').innerHTML=mir
}