1. onabort - 1 when the user interrupts the image upload
2. onafterupdate - at the end of the data transfer.
3. onbeforeunload - before unloading the page to save the data.
4. onbeforeupdate - before unloading the page.
5. onblur - when the window goes out of focus.
6. onbounce - in a MARQEE element when the value of the BEHAVIOR ALTERNATE property and content reaches the end.
7. onchange - when the content of the element changes.
8. onclick - when the mouse button is clicked on the document.
9. ondataavailable - periodically when data comes from an asynchronous source.
10. ondatasetchanged - when changing the order of the data, such as when filtering data.
11. ondatasetcomplete - when all the data from the source becomes available.
12. ondblclick - when the user double-clicks on the document.
13. ondragstart - when the user starts dragging with the mouse.
14. onerror - transmission error.
15. onerrorupdate - when the data change is canceled by the ONBEFOREUPDATE event, replacing the ONAFTERUPDATE event.
16. onfilterchange - when the state of a static filter changes or when a dynamic transition ends.
17. onfilterevent - when this filter transition is complete.
18. onfinish - at the end of the cycle in the MARQUEE tag.
19. onfocus - when the item becomes active.
20. onhelp - when the user presses the F1 or HELP keys.
21. onkeydown - when you press a keyboard key.
22. onkeypress - key is pressed and continues when the key is held down.
23. onkeyup - when the user releases a keyboard key.
24. onload - when the item is fully loaded.
25. onmousedown - when the user presses the left mouse button.
26. onmousemove - when the user moves the mouse.
27. onmouseout - when the mouse cursor moves off the element.
28. onmouseover - when the mouse cursor hovers over an element.
29. onmouseup - when the user releases the mouse button.
30. onreadystatechange - when the REDYSTATE property changes.
31. onreset - when clearing the form.
32. onresize - the user resizes the window.
33. onrowenter - when the data in the current row changes and new data is available.
34. onrowexit - before changing the data in the current line by the source.
35. onscroll - when the user scrolls the window.
36. onselect - when the current selection changes.
37. onselectstart - when the user first launches the selected section of the document.
38. onstart - at the beginning of scrolling of the scrolling line of the MARQUEE element.
39. onsubmit - when the form is submitted to the server or the SUBMIT button is pressed.
40. onunload - before unloading the page