private function generateBoard(startX:Number,startY:Number,totalRows:Number,totalCols:Number,buttonSize:Number):void {
			buttons = new Array();
			var colCounter:uint;
			var rowCounter:uint;
			for(rowCounter = 0; rowCounter < totalRows; rowCounter++) {				
				for(colCounter = 0; colCounter < totalCols; colCounter++) {
					var b:Button = new Button();
					b.x = startX + (colCounter*buttonSize);
					b.y = startY + (rowCounter*buttonSize);
					b.addEventListener(MouseEvent.CLICK, letterClicked);
					b.label = getRandomLetter().toUpperCase();
					b.setSize(buttonSize,buttonSize);
					b.name = "buttonRow"+rowCounter+"Col"+colCounter;
					addChild(b);
 
					buttons.push(b);
				}
			}
		}