function newTutorialFunctions() { thisObject = { play: play } const HEIGHT = 800 const WIDTH = 600 const MARGIN = 300 return thisObject function play(node) { let docAppDiv = document.getElementById('tutorialStepDiv') tutorialPosition = { x: MARGIN, y: (browserCanvas.height - HEIGHT) / 2 } docAppDiv.style = ' ' + 'position:fixed; top:' + tutorialPosition.y + 'px; ' + 'left:' + tutorialPosition.x + 'px; ' + 'width: ' + WIDTH + 'px;' + 'height: ' + HEIGHT + 'px;' + 'z-index:1;' } }