/* Code © http://www.white-hat-web-design.co.uk/blog/controlling-font-size-with-javascript/ */
/* **************************************************************************************** */

var min=8;
var max=25;
function increaseFontSize() {
 
   var p = document.getElementsByTagName('p');
   for(i=0;i<p.length;i++) {
 
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
 
         var s = 12;
      }
      if(s!=max) {
 
         s += 1;
      }
      p[i].style.fontSize = s+"px"
 
   }
}
function decreaseFontSize() {
   var p = document.getElementsByTagName('p');
   for(i=0;i<p.length;i++) {
 
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
 
         var s = 12;
      }
      if(s!=min) {
 
         s -= 1;
      }
      p[i].style.fontSize = s+"px"
 
   }
}