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Stephen Chapman

What Javascript event handlers are there and what do they do?

onmouseover executes when the mouse pointer passes onto the field
onmouseout executes when the mouse pointer leaves the field
onclick executes when you click on the field
onfocus executes when the form field gets the focus
onblur executes when the form field loses the focus
onchange executes when the form field loses the focus but only if the field contents have changed
onselect executes when the form field loses the focus if part or all of the field has been selected (highlighted)
onsubmit executes when the form's submit button has been pressed
onload used on the body statement to attach code that is to be executed after the page is loaded
onunload used on the body statement to attach code to execute when the page is closed