function changeFontSizeEx(inc)
{
	var elements = new Array();
	
	for (x = 1; x < arguments.length; x++)
	{
		//alert('added ' + arguments[x]);
		elements[x-1] = arguments[x];

	}
	
	var eArr = new Array();
	count = 0;
	for (i=0; i < elements.length; i++)
	{
		//alert(elements[i] + ' length ' + document.getElementsByTagName(elements[i]).length);
		//p = p.concat(document.getElementsByTagName(elements[i]));
		//alert ('p length ' + p.length);
		var p = document.getElementsByTagName('p');
		for (n=0; n < p.length; n++)
		{
			eArr[count] = p[n];
			count++;
		}
	}
	//alert('len eArr ' + eArr.length);
  //var p = document.getElementsByTagName('p');
  for(n=0; n<eArr.length; n++) 
  {
    if(eArr[n].style.fontSize) 
	{
       var size = parseInt(eArr[n].style.fontSize.replace("px", ""));
    } 
	else 
	{
       var size = 12;
    }
    eArr[n].style.fontSize = size+inc + 'px';
   }
}