var w = window;
function img_dayo(gifnm) {
   if (gifnm == "") {
      return(false)
   }
   if ((w == window) || w.closed) {
      w = open("", "_blank", "width=650,height=550");
   } else {
      w.focus();
   }
w.document.write('<HTML>');
w.document.write('<HEAD><TITLE>サンプル[');
w.document.write(gifnm);
w.document.write(']</TITLE><link rel="stylesheet" href="stl.css"></HEAD><BODY>');
w.document.write('<CENTER>');
w.document.write('<table border="0" cellpadding="4" cellspacing="0">');
w.document.write('<tr><td><h3>IMAGE</h3></td></tr><tr><td><img border="0" src="'+gifnm+'"></td>');
w.document.write('</tr><tr><td><form><p align="center"><input type="button" name="close" value="この窓を閉じる" onClick="window.close()"></p></form>');
w.document.write('</td></tr></table>');
w.document.write('</CENTER></BODY></HTML>'); 
w.document.close(); }