52 week high low for Amibroker (AFL)

_SECTION_BEGIN("52-Wk-H-L");
Hclose=HHV(H,252);
Lclose= LLV(L,252);
Sha1 = EncodeColor(colorGreen) + "52-Week-High = " + Hclose + "\n";
Sha2 = EncodeColor(colorRed) + "52-Week-Low = " + Lclose + "\n";
_N(Title = StrFormat("{{NAME}} ({{INTERVAL}}), {{DATE}} ; {{OHLCX}}, V=%1.0f\n {{VALUES}}\n\n", V) + Sha1 + Sha2);


_SECTION_END();

HI = Close > Ref(HHV(High,260),-1);
LW = Close < Ref(LLV(Low,260),-1);

//52 Week High Low
High52 = HHV(High,250);
Low52 = LLV(Low,250);
Filter = 1;

AddColumn(High52,"52 Week High");
AddColumn(Low52,"52 Week Low");