function modoru()
{
    document.write("<TABLE cellSpacing=0 cellPadding=10 width=200><TBODY>");
    document.write("  <TR align=middle>");
    document.write("    <TD noWrap><INPUT onclick=history.back() type=button value=�@–ß‚é�@></TD>");
    document.write("  </TR>");
    document.write("</TBODY></TABLE>");
}