function showover(imagess,ico)// ͼƬ½»»»Ð§¹û
{
    imagess.src = ico;	  
}
function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}