function enterHover(imgName)
	{
   		if (document.images)
    	{
      		imgOn=eval(imgName + "On.src");
      		document[imgName].src= imgOn;
    	}
 	}

function exitHover(imgName)
 {
   if (document.images)
    {
      imgOff=eval(imgName + "Off.src");
      document[imgName].src= imgOff;
    }
 }