// Place your application-specific JavaScript functions and classes here
// This file is automatically included by javascript_include_tag :defaults

function textarea_shrink(id) {
  if($(id).clientHeight <= 40)
    $(id).style.height = '2em';
  else if($(id).clientHeight - 100 <= 100)
    //$(id).style.height = '100px';
    
    $(id).style.height = $(id).clientHeight / 2 +'px';
  else
    $(id).style.height = $(id).clientHeight - 100 +'px';
}

function ptextarea_shrink(id) {
  if($(id).clientHeight <= 40)
    $(id).style.height = '20px';
  else if($(id).clientHeight - 100 <= 100)
    //$(id).style.height = '100px';
    
    $(id).style.height = $(id).clientHeight / 2 +'px';
  else
    $(id).style.height = $(id).clientHeight - 100 +'px';
}

function textarea_grow(id) {
  if($(id).clientHeight <= 100)
    $(id).style.height = $(id).clientHeight * 2 +'px';
  else
    $(id).style.height = $(id).clientHeight + 100 +'px';
}