document.write('<div id="amenohi" style="position:absolute;top:0px;right:0px;">');
document.write('<a href="http://powerline.jpn.org/cyclone/index.html" target="_blank"><img class="amenohi" src="http://www.seelink.net/image001.gif" border="0"></a>');
document.write('</div>');



function showLAYER(idName){

  if(document.getElementById) //NN6,Mozilla,IE5
    document.getElementById(idName).style.visibility
                                           = 'hidden'

  else if(document.all)       //IE4
    document.all(idName).style.visibility   = 'hidden'

  else if(document.layers)    //NN4
    document.layers[idName].visibility     = 'hidden'

}
setTimeout("showLAYER('amenohi')",20000);