onkeypress event

The onkeypress event activates when a character is typed within an element.  The event can be specified as a JavaScript expression or the name of a JavaScript function.  

If an expression is used, the JavaScript keyword this refers to the element.  

If the name of a function is used, the function will receive 2 parameters when called: 

• The browser event object; this object can be used to retrieve the character typed

• A reference to the element