function window_onclick() 
	{
	window.location.href = "SearchEn.htm" ;
	}
   
      adImages = new Array("images/banner1.gif","images/banner2.gif","images/banner3.gif","images/banner4.gif")
        adURL = new Array("ptfriendly.com/STinfo.html","ptfriendly.com/STinfo.html","ptfriendly.com/STinfo.html","ptfriendly.com/STinfo.html")
            thisAd = 0
           imgCt = adImages.length                                                                                            

     function rotate() 
	 {
      	if (document.images) 
		 {
      		thisAd++
     		 if (thisAd == imgCt) 
			 {
        			 thisAd = 0
        			 }
       		 document.adBanner.src=adImages[thisAd]
        		 setTimeout("rotate()", 3 * 1000)
              	}
              }

       function newLocation()  
	{
             document.location.href = "http://www." + adURL[thisAd]
             }

 <!-- Original script has been changed at ptfriendly.com -->

  <!-- The original script and many more are available free online at -->
  <!-- The JavaScript Source!! http://javascript.internet.com -->

  <!-- Begin
   
  var ans = new Array() ;
  var done = new Array() ;
  var score = 0;
  ans[1] = "c";
  ans[2] = "a";
  ans[3] = "b";
  ans[4] = "b";
  ans[5] = "d";
  ans[6] = "c";
  ans[7] = "c";
  ans[8] = "c";
  ans[9] = "d";
  ans[10] = "a";
  ans[11] = "d";
  ans[12] = "d";

  function Engine(question, answer)
    {
     if (answer != ans[question]) 
          {
          if (!done[question]) 
               {
              done[question] = -1;
              alert("Wrong.\n\nYour score is now: " + score);
               }
           else
              {
             alert("You have already answered that question.");
              }
           }
     else 
           {
           if (!done[question]) 
                 {
             done[question] = -1;
             score++;
             alert("Correct. \n\nYour score is now: " + score);
                 }
             else
                {		
                alert("You have already answered that question.");
                 }
            }
    }
	
  function NextLevel () 
  {
       if  (score >= 10 && score <= 13) 
           {
             alert("You have done well.\n\nFor recent updates on OA, please visit our Osteoarthritis Page.") ;
           }
       else  if  (score >= 6 && score <= 9) 
          {
             alert("6 to 9 correct answers is not too bad. \n Improve score by reviewing: Osteoarthritis.") ;
          }
   //change previous line to: self.location="js_misc_userquiz2.html" if you wish to extend testing.
       else
          {
             alert("A score less than 6 is not so good. \n Review: Osteoarthritis.") ;
          }
  }

// End hiding script from old browsers - - >
  //  End  -->