/**
* Auto Submit
* -----------------
* Automatically submits a form when 'this' changes
*
* @param  form str the form to submit
* @return $(this) obj
*/
$.fn.auto_submit = function( form )
{
  $(this).change( function(){
      $(form).submit();
  });
  return $(this);
}


/**
* Search input text
* -----------------
* Places the title of the 'this' into the value attribute
* and clears it on focus. On blur, if there is no value attribute
* is is set back to the value of title.
*
* @return $(this) obj
*/
$.fn.search_text_input = function()
{  
  // focus
  $(this).focus( function( ){
	  if ( this.value == this.title ) {
		  $(this).val("");
	  };
  });

  // blur
  $(this).blur(function(){
    if(!$(this).val().length){
      $(this).val(this.title);
   }
  });
  return $(this);
}


/**
* Print Link
* -----------------
* Write in a print link to print the current window
*/
$.fn.print_link = function()
{
  var new_li = $('<li class="print"><a href="#">Print this</a></li>');
  $('a',new_li).click(function(){
     window.print();
     return false;
  });
  return $(this).prepend(new_li);
}


/**
* Hide non js elements
* -----------------
* Add a class to the body element i order to hide the
* elements not required when javascript is active.
*/
$.fn.hide_non_js_elements = function( )
{
   $('body').addClass( 'js-enabled' );
}


/**
* Place Video
* ---------------
* calculates the height of the video and places it using jQuery.flash()
* There is a php alternative to find the width/height that I am working on,
* until it is finished the client must provide the width/height of the
* video when uploading it.
*/
$.fn.place_video = function( vwidth, chrome )
{

  // if(!$(this).length)
  //   return;
    
  // var width_height = $('a',this).attr('rel').split(':');
  // var ratio        = width_height[0] / width_height[1];
  // var height       = vwidth / ratio;

  // $(this).flash(
  //   {
  //    src: '/assets/flash/mediaplayer/player.swf',
  //    width: vwidth,
  //    height: height + chrome,
  //    expressInstall: true,
  //    id: 'player1',
  //    name: 'player1',
  //    allowscriptaccess: 'always',
  //    flashvars: { 'file':$('a', this).attr('href'), 'allowautostart': 'true' }
  //   },
  //   { version: 9 });
  // return $(this);
}