Hello Mladen amd Mrtools, i need your help coding an indicator show up arrows when Super trend is up and down arrows when is down, my code is the fallow but only show up arrows, thanks in advance.

double ST(int i)
{
double up = iCustom(Symbol(),0,"SuperTrend nrp (new format)",0,i);
double dn = iCustom(Symbol(),0,"SuperTrend nrp (new format)",1,i);

if(up)
{
return(1);
}
if(dn)
{
return(-1);
}

return(0);
}

bool Arrowup(int i)
{
bool up=false;

up = ST(i)==1;

if(up)
{
return true;
}
return false;

}
bool Arrowdn(int i)
{
bool dn=false;

dn = ST(i)==-1;

if(dn)
{
return true;
}
return false;
}