//Simple Font Resizer Javascript//

/**

* Simple Font Resizer Javascript

* @package Joomla 1.5

* @copyright Copyright (C) 2008 UnDesign. All rights reserved.

* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL

* This program is free software; you can redistribute it and/or

* modify it under the terms of the GNU General Public License

* as published by the Free Software Foundation; either version 2

* of the License, or (at your option) any later version.

* 

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU General Public License for more details.

*/



var prefsLoaded = false;

var defaultFontSize = defaultSize;

var currentFontSize = defaultFontSize;



function revertStyles(){



	currentFontSize = defaultFontSize;

	changeFontSize(0);



}







function changeFontSize(sizeDifference){

	currentFontSize = parseInt(currentFontSize) + parseInt(sizeDifference * 10);



	if(currentFontSize > 150){

		currentFontSize = 150;

	}else if(currentFontSize < 70){

		currentFontSize = 70;

	}



	setFontSize(currentFontSize);

};



function setFontSize(fontSize){

	var stObj = (document.getElementById) ? document.getElementById('content_area') : document.all('content_area');

	document.body.style.fontSize = fontSize + '%';



	//alert (document.body.style.fontSize);

};





function createCookie(name,value,days) {

  if (days) {

    var date = new Date();

    date.setTime(date.getTime()+(days*24*60*60*1000));

    var expires = "; expires="+date.toGMTString();

  }

  else expires = "";

  document.cookie = name+"="+value+expires+"; path=/";

};



function readCookie(name) {

  var nameEQ = name + "=";

  var ca = document.cookie.split(';');

  for(var i=0;i < ca.length;i++) {

    var c = ca[i];

    while (c.charAt(0)==' ') c = c.substring(1,c.length);

    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);

  }

  return null;

};



window.onload = setUserOptions;



function setUserOptions(){

	if(!prefsLoaded){



		cookie = readCookie("fontSize");

		currentFontSize = cookie ? cookie : defaultFontSize;

		setFontSize(currentFontSize);



		prefsLoaded = true;

	}



}



window.onunload = saveSettings;



function saveSettings()

{

  createCookie("fontSize", currentFontSize, 365);

}