setPriceStudy(true);
    setStudyTitle("Woodie's Weekly Pivot Points");
    setCursorLabelName("PP-R2", 0);
    setCursorLabelName("PP-R1", 1);
    setCursorLabelName("PP", 2);
    setCursorLabelName("PP-S1", 3);
    setCursorLabelName("PP-S2", 4);
    // R2
    setDefaultBarStyle(PS_DASH, 0);
    setDefaultBarFgColor(Color.RGB(255,0,0), 0);
    setDefaultBarThickness(2, 0);
    // R1
    setDefaultBarStyle(PS_DOT, 1);
    setDefaultBarFgColor(Color.RGB(0,0,255), 1);
    setDefaultBarThickness(1, 1);   
    // Pivot  Point
    setDefaultBarStyle(PS_SOLID, 2);
    setDefaultBarFgColor(Color.RGB(0,0,0), 2);
    setDefaultBarThickness(1, 2);
    // S1
    setDefaultBarStyle(PS_DOT, 3);
    setDefaultBarFgColor(Color.RGB(0,0,255), 3);
    setDefaultBarThickness(1, 3);
    // S2
    setDefaultBarStyle(PS_DASH, 4);
    setDefaultBarFgColor(Color.RGB(255,0,0), 4);
    setDefaultBarThickness(2, 4);
}

var bInit = false;
var xHigh  = null;
var xLow   = null;
var xOpen = null; 
var vPP = null;
var vR1 = null;
var vS1 = null;
var vR2 = null;
var vS2 = null;  

function main() {

    if(isMonthly())
    return;

    
    if(bInit == false){
        xHigh  = high(inv("W"));
        xLow   = low(inv("W"));
        xOpen = open(inv("W")); 
        bInit = true;
    }

    
    var vHigh  = xHigh.getValue(-1);
    var vLow   = xLow.getValue(-1);
    var vOpen = xOpen.getValue(0); 
    if(vHigh == null || vLow == null || vOpen == null)
    return;

    
    vPP = (vHigh+vLow+2*vOpen)/4;
    vR1 = 2*vPP-vLow;
    vS1 = 2*vPP-vHigh;
    vR2 = (vPP-vS1)+vR1;
    vS2 = vPP-(vR1-vS1);  

    
    return new Array(vR2, vR1, vPP, vS1, vS2);
}