var p="/img/";

preload_array=[]

function preloadImage(imageFile,a)
{
  var i=new Image()
  i.src=p+imageFile;
  preload_array[a]=i;
}

	preloadImage("wheel2.gif",1);

function check_buttons(e, vkl)
{
if (vkl==1) 
{document.images["wheel"+e].src=preload_array[1].src;}
else 
{document.images["wheel"+e].src=p+"wheel1.gif";}
}