document.onkeydown=keyHit;
   document.ondblclick=clickEvent;  

    if(document.layers)
      {
	document.captureEvents(Event.KEYDOWN);
	leftArrow=28;
	rightArrow=29;
	bigLeftArrow=44;
	bigRightArrow=46;
	iValue=105;

      }else
	{
	  leftArrow=37;
	  rightArrow=39;
	  bigLeftArrow=188;
	  bigRightArrow=190;
	  iValue=73;
	}
      
    function keyHit(evt)
      {
	if(evt)
	  {
	    keyEvent = evt.which;
	  } 
	else
	  {
	    keyEvent = window.event.keyCode;
	  }

	if(keyEvent==leftArrow)
	  {
	    if(document.links.prevPage != null) window.location=document.links.prevPage;
	  } 
	else if(keyEvent==rightArrow)
	  {
	     if(document.links.nextPage != null) window.location=document.links.nextPage;
	  } 
	else if(keyEvent==iValue)
	  {
	     if(document.links.indexFile != null) window.location=document.links.indexFile;
	  } 
	else if(keyEvent==bigLeftArrow)
	  {
	     if(document.links.prevSection != null) window.location=document.links.prevSection;
	  } 
	else if(keyEvent==bigRightArrow)
	  {
	     if(document.links.nextSection != null) window.location=document.links.nextSection;
	  }
	
      }


	function clickEvent(evt)
	{
	  if(document.links.nextPage != null) window.location=document.links.nextPage;
	}