Grid Hour Day for Amibroker (AFL)

_SECTION_BEGIN("Grid_HourDay");
ShowGrid = ParamToggle("Show Grid", "No|Yes", 1);
if (ShowGrid == 1)
{
grid_DAY = IIf(Day() != Ref(Day(), -1), 1, 0); 
grid_DAY_color = ParamColor("СolorDAY", colorBlue);
Plot(grid_DAY, "", grid_DAY_color, styleHistogram|styleThick|styleNoLabel|styleNoRescale|styleOwnScale);

grid_HOUR = IIf(Hour() != Ref(Hour(), -1), 1, 0); 
grid_HOUR_color = ParamColor("СolorHOUR", colorBrown);
Plot(grid_HOUR, "", grid_HOUR_color, styleHistogram|styleDashed|styleNoLabel|styleNoRescale|styleOwnScale);
}
else 
{}
_SECTION_END();