# Cell Icons (JavaScript Monthly Event Calendar) | DayPilot Pro for JavaScript Demo

> This example shows how to display icons in the cells of the monthly calendar. The icons are clickable and can be used to trigger custom actions. Read more about the [cell icons](https://doc.daypilot.org/month/cell-icons/).

## Links

- Canonical HTML: /demo/month/cellicons.html
- Source HTML folder: /demo/month/
- Catalog root: /demo/
- Catalog: /demo/llms.txt

## Source

### Inline demo script 1

```javascript
const dp = new DayPilot.Month("dp", {
            startDate: DayPilot.Date.today(),
            onTimeRangeSelected: async args => {
                const modal = await DayPilot.Modal.prompt("New event name:", "Event");
                dp.clearSelection();
                if (!modal.result) return;
                dp.events.add({
                    start: args.start,
                    end: args.end,
                    id: DayPilot.guid(),
                    text: modal.result
                });
                dp.message("Created");
            },
            onBeforeCellRender: args => {
                args.cell.properties.headerHtml = "";
                args.cell.properties.areas = [
                    {
                        left: 0,
                        top: 0,
                        right: 0,
                        bottom: 0,
                        text: args.cell.start.toString("d"),
                        style: "font-size: 26px; display: flex; justify-content: center; align-items: center;",
                        fontColor: "#e0e0e0"
                    }
                ];

                if (args.cell.start.getDay() < 15 && args.cell.start.getMonth() === DayPilot.Date.today().getMonth()) {
                    args.cell.properties.areas.push({
                        right: 2,
                        top: 2,
                        width: 20,
                        height: 20,
                        symbol: "../icons/daypilot.svg#padlock",
                        // orange
                        fontColor: "#ff8c00",
                        style: "cursor: pointer;",
                        action: "None",
                        onClick: args => {
                            const cell = args.source;
                            DayPilot.Modal.alert("Cell clicked: " + cell.start);
                            console.log("args", args);
                        },
                    });
                }
            }
        });
        dp.init();
```