Help me for this formula pls

Hello my friends
I want to put the Up Arrow when the EMA("Periods", 12, 2, 300, 1, 10 ) cross whith DispMA("Periods", 10, 2, 300 )("Displacement", 15, -50, 50 )
and DownArrow When the opposite happens:thumb:
and filter or explore for this cross

this is a formula :

_SECTION_BEGIN("Price");
SetChartOptions(0,chartShowArrows|chartShowDates);
_N(Title = StrFormat("{{NAME}} - {{INTERVAL}} {{DATE}} Open %g, Hi %g, Lo %g, Close %g (%.1f%%) {{VALUES}}", O, H, L, C, SelectedValue( ROC( C, 1 ) ) ));
Plot( C, "Close", ParamColor("Color", colorBlack ), styleNoTitle | ParamStyle("Style") | GetPriceStyle() );
_SECTION_END();

_SECTION_BEGIN("EMA");
P = ParamField("Price field",-1);
Periods = Param("Periods", 12, 2, 300, 1, 10 );
Plot( EMA( P, Periods ), _DEFAULT_NAME(), ParamColor( "Color", colorCycle ), ParamStyle("Style") );
_SECTION_END();

_SECTION_BEGIN("DispMA");
P = ParamField("Field");
Type = ParamList("Type", "Simple,Exponential,Double Exponential,Tripple Exponential,Wilders,Weighted");
Periods = Param("Periods", 10, 2, 300 );
Displacement = Param("Displacement", 15, -50, 50 );
m = 0;

if( Type == "Simple" ) m = MA( P, Periods );
if( Type == "Exponential" ) m = EMA( P, Periods );
if( Type == "Double Exponential" ) m = DEMA( P, Periods );
if( Type == "Tripple Exponential" ) m = TEMA( P, Periods );
if( Type == "Wilders" ) m = Wilders( P, Periods );
if( Type == "Weighted" ) m = WMA( P, Periods );

Plot( m, _DEFAULT_NAME(), ParamColor("Color", ColorCycle), ParamStyle("Style"), 0, 0, Displacement );
_SECTION_END();