function swap(n, ImgSv){
i = new Image
i = document.images[n]
i.src=ImgSv
}
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}