Rule: Avoid static event handlers
Static and in html tags written event handlers should be avoided and indicates a minor knowledge in modern web technologies.
Another advantage is the reduced byte size an a better caching possibility of the html document.
Bad event handler attributes are:
oncopy, oncut, onpaste, onbeforeunload, onblur, onchange, onclick, oncontextmenu, ondblclick, onfocus, onkeydown, onkeypress, onkeyup, onmousedown, onmousemove, onmouseout, onmouseover, onmouseup, onresize, onscroll