// JavaScript Document

var min=8;
var max=18;
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 = 11;
      }
      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 = 11;
      }
      if(s!=min) {
         s -= 1;
      }
      p[i].style.fontSize = s+"px"
   }   
}
// Expand and collapse function
function blocking(nr)
{
if (document.all)
{
current = ((document.all[nr].style.display == 'none') || (document.all[nr].style.display == '')) ? 'block' : 'none'; document.all[nr].style.display = current; } else if (document.getElementById) { vista = ((document.getElementById(nr).style.display == 'none') || (document.getElementById(nr).style.display == '')) ? 'block' : 'none'; document.getElementById(nr).style.display = vista; } }