Top plus height position calculation seems wrong

When I have multiple notifications, that exceed the visible window height, the last one that appears in the column, before moving to the next column is partly cut. This is the original code:
```
if ((top + elHeight) > window.innerHeight) {
position = startTop;
k ++;
j = 0;
}
```
To fix I changed the query to this:
`if ((position + elHeight) > window.innerHeight) {`