objspotPosition = "";

function f1(objspotname)
{
objspot = document.getElementById(objspotname);
objspotPosition = objspot.style.backgroundPosition;
objspot.style.backgroundPosition = "-18px 0";
}

function f2(objspotname)
{
objspot = document.getElementById(objspotname);
objspot.style.backgroundPosition = objspotPosition;
}