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

 if(Zhover) { Anav4n=Xpreload("http://www.treadmillselector.com/img/clear.gif"); Anav4h=Xpreload("http://www.treadmillselector.com/img/Treadmills_BHFitness.jpg"); }
 
 if(Zhover) { Bnav4n=Xpreload("http://www.treadmillselector.com/img/clear.gif"); Bnav4h=Xpreload("http://www.treadmillselector.com/img/Treadmills_BodySolid.jpg"); }
 
 if(Zhover) { Cnav4n=Xpreload("http://www.treadmillselector.com/img/clear.gif"); Cnav4h=Xpreload("http://www.treadmillselector.com/img/Treadmills_IronManFitness.jpg"); }

 if(Zhover) { Dnav4n=Xpreload("http://www.treadmillselector.com/img/clear.gif"); Dnav4h=Xpreload("http://www.treadmillselector.com/img/Treadmills_Landice.jpg"); }

 if(Zhover) { Enav4n=Xpreload("http://www.treadmillselector.com/img/clear.gif"); Enav4h=Xpreload("http://www.treadmillselector.com/img/Treadmills_LifeFitness.jpg"); }

 if(Zhover) { Fnav4n=Xpreload("http://www.treadmillselector.com/img/clear.gif"); Fnav4h=Xpreload("http://www.treadmillselector.com/img/Treadmills_MagnumFitness.jpg"); }

 if(Zhover) { Gnav4n=Xpreload("http://www.treadmillselector.com/img/clear.gif"); Gnav4h=Xpreload("http://www.treadmillselector.com/img/Treadmills_Motus.jpg"); }
 
 if(Zhover) { Hnav4n=Xpreload("http://www.treadmillselector.com/img/clear.gif"); Hnav4h=Xpreload("http://www.treadmillselector.com/img/Treadmills_Noramco.jpg"); } 
 
 if(Zhover) { Inav4n=Xpreload("http://www.treadmillselector.com/img/clear.gif"); Inav4h=Xpreload("http://www.treadmillselector.com/img/Treadmills_Precor.jpg"); }
 
 if(Zhover) { Jnav4n=Xpreload("http://www.treadmillselector.com/img/clear.gif"); Jnav4h=Xpreload("http://www.treadmillselector.com/img/Treadmills_SportsArt.jpg"); }
 
 if(Zhover) { Knav4n=Xpreload("http://www.treadmillselector.com/img/clear.gif"); Knav4h=Xpreload("http://www.treadmillselector.com/img/Treadmills_StarTrac.jpg"); }
 
 if(Zhover) { Lnav4n=Xpreload("http://www.treadmillselector.com/img/clear.gif"); Lnav4h=Xpreload("http://www.treadmillselector.com/img/Treadmills_STFitness.jpg"); }
 
 if(Zhover) { Onav4n=Xpreload("http://www.treadmillselector.com/img/clear.gif"); Onav4h=Xpreload("http://www.treadmillselector.com/img/Treadmills_True.jpg"); }
 
 if(Zhover) { Nnav4n=Xpreload("http://www.treadmillselector.com/img/clear.gif"); Nnav4h=Xpreload("http://www.treadmillselector.com/img/Treadmills_TuffStuff.jpg"); }