draw a shape once

[eurostoxx]

I know this is a stupid question but here goes. I want to draw a shape on a chart when a condition happens. High(0) > SwingHigh.

However I only want the shape to print once or twice. So I have added a counter, c, to control it.

if (High(0) > SwingHigh && counter < 7) draw

I then reset the counter when the initial condition is not true

if (High(0) < SwingHigh)
counter = 0;

but for some reason I cant get it to draw anything when I put my counter in. I think it has to do with declaring var c in the main section.

here is the full code. Thanks

function preMain() {
 
    setPriceStudy(true);
    setStudyTitle("BreakSwings");
    setShowTitleParameters(false) 
    setComputeOnClose()    
  setShowSeries(true, 0);
  setShowSeries(true, 1);
    var c=0;


}

function main() 
{  //m opening bracket
    var c;
    var vSwings5 = efsExternal("Swings.efs", 2, inv(5) );
    var vSwingHigh5 = getSeries(vSwings5,0);
    var vSwingLow5 = getSeries(vSwings5,1);
    
    var vSwings30 = efsExternal("Swings.efs", 2, inv(30) );
    var vSwingHigh30 = getSeries(vSwings30,0);
    var vSwingLow30 = getSeries(vSwings30,1);   
    
    var lastswinghigh;
    if( (high(0) > vSwingHigh5)   ) 
       if (c < 3)
{    
drawShape(Shape.UPARROW, AboveBar1, Color.RGB(0,0,255));
c = c + 1;
}    

    if (high(0) < vSwingHigh5)
    c = 0;  // reset counter
    
    return new Array (vSwingHigh5, vSwingLow5);
  } 

[eurostoxx]

i figured it out.. you can delete this post if you want