function profit2(f1, f2) {
if (f1>1&&f2>1) {
	var profit=1/(1/f1+1/f2)-1;
	if (profit>0) return profit;
	else return profit;
}
else return false;
}
function to_bet2(f1, f2) {

	var f01=RoundX(document.main.to_kb1.value);
	var f02=RoundX(document.main.to_kb2.value);
	var l01=RoundX(document.main.to_kl1.value);
	var l02=RoundX(document.main.to_kl2.value);

	var money1=RoundX(document.getElementById('bb1_0').innerHTML);
	var money2=RoundX(document.getElementById('bb2_0').innerHTML);

        var to_cb1=get_comm(document.main.to_cb1);
        if (!isNaN(to_cb1)&&to_cb1>0) {f01=(f01-1)*(1-to_cb1/100)+1;}
        war_comm(to_cb1,'wto_cb1');
        var to_cl1=get_comm(document.main.to_cl1);
        if (!isNaN(to_cl1)&&to_cl1>0) {l01=(l01-1)/(1-to_cl1/100)+1;}
        war_comm(to_cl1,'wto_cl1');
        var to_cb2=get_comm(document.main.to_cb2);
        if (!isNaN(to_cb2)&&to_cb2>0) {f02=(f02-1)*(1-to_cb2/100)+1;}
        war_comm(to_cb2,'wto_cb2');
        var to_cl2=get_comm(document.main.to_cl2);
        if (!isNaN(to_cl2)&&to_cl2>0) {l02=(l02-1)/(1-to_cl2/100)+1;}
        war_comm(to_cl2,'wto_cl2');
	//1
	var need1=money1;
	var need2=money1*f1/f2;
	var s1=need1+need2;
	//2
	need2=money2;
	need1=money2*f2/f1;
	var s2=need1+need2;

	//back
	if (s1>=s2) {
        	need1=money1;
        	need2=money1*f1/f2;
	}
	if (s2>=s1) {
        	need2=money2;
        	need1=money2*f2/f1;
	}

	need1=need1-money1;
	need2=need2-money2;


        var bet1=need1*f1/f01;
        var bet2=need2*f2/f02;

        document.getElementById('to_bb1').innerHTML=RoundX(bet1);
        document.getElementById('to_bb2').innerHTML=RoundX(bet2);


	var leed1=bet1/(l01-1);
	var leed2=bet2/(l02-1);


        document.getElementById('to_bl1').innerHTML=RoundX(leed1);
        document.getElementById('to_bl2').innerHTML=RoundX(leed2);


	var bb1=RoundX(document.getElementById('bb1_0').innerHTML);
	var bb2=RoundX(document.getElementById('bb2_0').innerHTML);

        var out1=bb1*f1-bb1-bb2;

	var out2=bb2*f2-bb1-bb2;
	
	var pp1=out1/(bb1+bb2);
	var pp2=out2/(bb1+bb2);
	
        if (out1>0) {
                document.getElementById('c1').innerHTML =center(allert(RoundX(out1)));
                document.getElementById('p1').innerHTML =center(allert(RoundX(100*pp1)+'%'));
        }
        else {
                document.getElementById('c1').innerHTML =center(non_allert(RoundX(out1)));
                document.getElementById('p1').innerHTML =center(non_allert(RoundX(100*pp1)+'%'));
        }
        if (out2>0) {
                document.getElementById('c2').innerHTML =center(allert(RoundX(out2)));
                document.getElementById('p2').innerHTML =center(allert(RoundX(100*pp2)+'%'));
        }
        else {
                document.getElementById('c2').innerHTML =center(non_allert(RoundX(out2)));
                document.getElementById('p2').innerHTML =center(non_allert(RoundX(100*pp2)+'%'));
        }
}