function srchbckswap()
{document.y7unihdfrm.y7unihdsrchtxt.style.backgroundImage="url(http://au.i1.yimg.com/au.yimg.com/i/uh/y7/hdr_srch_bck_1_3.gif)";}
function srchbckswap2()
{
if (document.y7unihdfrm.y7unihdsrchtxt.value.length<=0)
{document.y7unihdfrm.y7unihdsrchtxt.style.backgroundImage="url(http://au.i1.yimg.com/au.yimg.com/i/uh/y7/hdr_srch_bck_1_2.gif)";}
}