Ok, works.. 

//from Nicolas Stochastic Divergence indicator
p=14
k=3
d=6
overboughtzone=80
oversoldzone=20
maxCandele = 10

x = stochastic[p,k]
y = average[d](x)


if x>overboughtzone then
hi=max(hi,x)
hico=max(hico,max(high,high[1]))
endif
if x crosses under y then
sto2b=sto1b
sto1b=hi
hi=0
p3b=p1b
p2b=max(p1b,hico1)
p1b=max(highest[3](high),hico)
if p2b=p1b then
p2b=max(p3b,p4b)
endif
hico=0
hico1=0
endif
if x<y then
p4b=hico1
hico1=max(hico1,high)
endif

c1=0
if p1b>p2b and sto1b<sto2b and x crosses under y and x<x[1] and barindex>maxCandele then
c1 = p1b>p2b and sto1b<sto2b and x crosses under y and x<x[1]
endif

if x<oversoldzone then
lo=min(lo,x)
lowco=min(lowco,min(low,low[1]))
endif
if x CROSSES OVER y  then 
sto2h=sto1h
sto1h=lo
lo=100
p3h=p1h
p2h=min(p1h,lowco1)
p1h=min(lowest[3](low),lowco)
if p2h=p1h then
p2h=min(p3h,p4h)
endif
lowco=100000
lowco1=100000
endif
if x>y then 
p4h=lowco1
lowco1=min(lowco1,low)
endif

c2=0
c2 = p1h<p2h and sto1h>sto2h and x crosses over y and x>x[1]
if c2<>0 and barindex>maxCandele then
c2=0
endif

c2=0
if p1h<p2h and sto1h>sto2h and x crosses over y and x>x[1] and barindex>maxCandele then
c2 = p1h<p2h and sto1h>sto2h and x crosses over y and x>x[1]
endif

screener[c1 or c2]