function openImage(imgfilename,imgwidth,imgheight)
{
 var currentimgwidth = imgwidth+20;
 var currentimgheight = imgheight+70;
 var whichoptions = "width="+currentimgwidth+",height="+currentimgheight+",resizable=yes,status=no";
 var whichurl = "imgopen.php?imgfilename="+imgfilename;
 var whichname = "imgopen";
 window.open(whichurl,whichname,whichoptions);
}

function chngImg(imgname, mousestat)
{
 if (document.images)
 {
  if(mousestat==1)
   document.images[imgname].src = "images/nav/" + imgname + "1.gif";
  else
   document.images[imgname].src = "images/nav/" + imgname + "0.gif";
 }
}

function chngImg2nd(imgname, mousestat)
{
 if (document.images)
 {
  if(mousestat==1)
   document.images[imgname].src = "../images/nav/" + imgname + "1.gif";
  else
   document.images[imgname].src = "../images/nav/" + imgname + "0.gif";
 }
}