clear :: Form.Element

clear(element) -> HTMLElement

 

Clears the contents of a text input.

 

Example

 

This code sets up a text field in a way that it clears its contents the first time it receives focus:

 

$('some_field').onfocus = function() {

  // if already cleared, do nothing

  if (this._cleared) return

 

  // when this code is executed, "this" keyword will in fact be the field itself

  this.clear()

  this._cleared = true

}

 


Prototype API 1.5.0 - prototypejs.org