function swapimgV(vname)
{
 if(vname=="V01")
  document.images.V01.src="images/menuOn01.gif";
 else if(vname=="V02")
  document.images.V02.src="images/menuOn02.gif";
 else if(vname=="V03")
  document.images.V03.src="images/menuOn03.gif";
 else if(vname=="V04")
  document.images.V04.src="images/menuOn04.gif";
}

function swaprestoreV(vimg)
{
 if(vimg=="V01")
  document.images.V01.src="images/menu01.gif";
 else if(vimg=="V02")
  document.images.V02.src="images/menu02.gif";
 else if(vimg=="V03")
  document.images.V03.src="images/menu03.gif";
 else if(vimg=="V04")
  document.images.V04.src="images/menu04.gif";
}