File: testscript.js

function parReplace() {
   var myPar = document.getElementById('scriptTest');
   // delete all children
   if (myPar.hasChildNodes()) {
      while (myPar.childNodes.length >= 1) {
         myPar.removeChild(myPar.firstChild);
         }
      }
   // add new children
   var stringOne = document.createTextNode('This paragraph content was generated by JavaScript. If you were viewing the ');
   var anchorOne = document.createElement('a');
   anchorOne.setAttribute('href','index.php');
   var anchorText = document.createTextNode('index.php');
   anchorOne.appendChild(anchorText);
   var stringTwo = document.createTextNode(' version of this page, the script would have been deleted from the page source and thus would not have executed.');
   myPar.appendChild(stringOne);
   myPar.appendChild(anchorOne);
   myPar.appendChild(stringTwo);
   }