function navover(nom)
{
 document[nom].src = '/images/'+nom+'_nav2.gif';
}


function navout(nom)
{
 document[nom].src = '/images/'+nom+'_nav1.gif';
}


function opengasspringend() 
{ 
window.open('/spec/gasspringends.htm','topic','width=500,height=400,left=10,top=10,directories=no,location=no,menubar=no,scrollbars=yes,status=no,toolbar=no,resizable=yes'); 
}

function fixdetailimage()
{
document.detail.src = '/images/catalog/noimage_detail.jpg';
}

function fixthumbimage(im)
{
errimg = 'thumbnail'+im;
document[errimg].src = '/images/catalog/noimage_thumb.jpg';
}


function changedetail(img)
{
document.detail.src = '/images/catalog/details/'+img;
}

function openfeature(fi)
  {
  fw = window.open("/catalog/featurewin.asp?id=" + fi,"featurewin","toolbar=no,location=no,directories=no,status=no,menubar=0,scrollbars=1,resizable=no,width=400,height=300,left=500,top=200")
  fw.focus();
  }