nl_tokens: Default behavior when a return value is given for a change function .
pl_tokens: function changeValue ( node , value , attribute ) { var firstChild switch ( attribute ) { case 'textContent' : firstChild = node . firstChild if ( firstChild && ! firstChild . nextSibling && firstChild . nodeType === TEXT_NODE ) firstChild . textContent = value else node . textContent = value break case 'checked' : node . checked = Boolean ( value ) break case 'value' : // Prevent some misbehavior in certain browsers when setting a value to // itself, i.e. text caret not in the correct position. if ( node . value !== value ) node . value = value break default : <mask> } }