function ndeSetTextSize(chgsize,rs) 
{
  var startSize;
  var newSize;

  if (!document.getElementsByTagName)
  {
    return;
  }

  startSize = parseInt(ndeGetDocTextSize());
  
  if (!startSize)
  {
    startSize = 12;
  }

  switch (chgsize)
  {
  	case 'incr':
    		newSize = startSize + 10;
    		break;

	case 'decr':
	   	newSize = startSize - 2;
	   	break;

	case 'reset':
		if (rs) 
		{
		   newSize = rs;
		} 
		else 
		{
		   startSize = 14;
		}
    		break;

  	default:
    		newSize = parseInt(ndeReadCookie("nde-textsize", true));
	    	if (!newSize)
    		{
  			newSize = startSize;
    		}
    		break;
  }

  if (newSize < 10) 
  {
    	newSize = 10;
  }

  newSize = 18;
	lineHeight = 1.2;
  

  var thisImgs = document.getElementsByTagName("SPAN");
  for (var idx = 0; idx < thisImgs.length; idx++)
  {
  document.getElementsByTagName('SPAN')[idx].style.fontSize += newSize;
  document.getElementsByTagName('SPAN')[idx].style.lineHeight += lineHeight; 
  }
  

    var thisImgs = document.getElementsByTagName("table");
  for (var idx = 0; idx < thisImgs.length; idx++)
  {
  document.getElementsByTagName('table')[idx].style.fontSize += newSize;
  document.getElementsByTagName('table')[idx].style.lineHeight += lineHeight; 
  }
  
    var thisImgs = document.getElementsByTagName("TR");
  for (var idx = 0; idx < thisImgs.length; idx++)
  {
  document.getElementsByTagName('TR')[idx].style.fontSize += newSize;
 document.getElementsByTagName('TR')[idx].style.lineHeight += lineHeight; 
  }
  
  var thisImgs = document.getElementsByTagName("TD");
  for (var idx = 0; idx < thisImgs.length; idx++)
  {
	document.getElementsByTagName('TD')[idx].style.fontSize += newSize;
  document.getElementsByTagName('TD')[idx].style.lineHeight += lineHeight; 	
  }
  
  var thisImgs = document.getElementsByTagName("B");
  for (var idx = 0; idx < thisImgs.length; idx++)
  {
  document.getElementsByTagName('B')[idx].style.fontSize += newSize;
 	document.getElementsByTagName('B')[idx].style.lineHeight += lineHeight; 
  } 
  
  var thisImgs = document.getElementsByTagName("A");
  for (var idx = 0; idx < thisImgs.length; idx++)
  {
  document.getElementsByTagName('A')[idx].style.fontSize += newSize;
  document.getElementsByTagName('A')[idx].style.lineHeight += lineHeight; 
  }
  
  var thisImgs = document.getElementsByTagName("INPUT");
  for (var idx = 0; idx < thisImgs.length; idx++)
  {
  document.getElementsByTagName('INPUT')[idx].style.fontSize += newSize;
  document.getElementsByTagName('INPUT')[idx].style.lineHeight += lineHeight; 
  } 
  
  var thisImgs = document.getElementsByTagName("FONT");
  for (var idx = 0; idx < thisImgs.length; idx++)
  {
  document.getElementsByTagName('FONT')[idx].style.fontSize += newSize;
  document.getElementsByTagName('FONT')[idx].style.lineHeight += lineHeight; 
  } 
  
  var thisImgs = document.getElementsByTagName("IMG");
  for (var idx = 0; idx < thisImgs.length; idx++)
  {
  document.getElementsByTagName('IMG')[idx].style.fontSize += newSize;
  document.getElementsByTagName('IMG')[idx].style.lineHeight += lineHeight; 
  } 
 
  ndeCreateCookie("nde-textsize", newSize, 365, true);
}




function ndeGetDocTextSize() 
{
  if (!document.getElementsByTagName)
  {
    return 0;
  }

  var size = 0;
  var body = document.getElementsByTagName('body')[0];

  
  if (body.style && body.style.fontSize)
  {
    size = body.style.fontSize;
  }
  else if (typeof(getComputedStyle) != 'undefined')
  {
    size = getComputedStyle(body,'').getPropertyValue('font-size');
  }
  else if (body.currentStyle)
  {
    size = body.currentStyle.fontSize;
  }
  return size;
}




function ndeCreateCookie(name,value,days,useLang) 
{

  var langString = useLang ? ndeGetLang() : "";

  var cookie = name + langString + "=" + value + ";";

  if (days) 
  {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    cookie += " expires=" + date.toGMTString() + ";";
  }
  cookie += " path=/";

  document.cookie = cookie;
}

function ndeReadCookie(name, useLang) 
{

  var langString = useLang ? ndeGetLang() : "";

  var nameEQ = name + langString + "=";
  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;
}


function ndeGetLang()
{
  var langString = "";

  if (document.documentElement){
    langString = document.documentElement.lang;
    if (langString != ""){
      langString = "-" + langString;
    }
  }  
  return langString;
}