MSFPhover = 
  (((navigator.appName == "Netscape") && 
  (parseInt(navigator.appVersion) >= 3 )) || 
  ((navigator.appName == "Microsoft Internet Explorer") && 
  (parseInt(navigator.appVersion) >= 4 ))); 
function MSFPpreload(img) 
{
  var a=new Image(); a.src=img; return a; 
}

if(MSFPhover) { MSFPnav1n=MSFPpreload('_derived/home_cmp_clearmt010_vbtn.gif'); MSFPnav1h=MSFPpreload('_derived/home_cmp_clearmt010_vbtn_a.gif'); }