function zoom(src,x,y)
 {
 oldx=x;
 oldy=y;

 scrollvar="no";

 if (y > 510)
  {
  x=x+20;
  y=510;
  scrollvar="yes";
  }
 if (x > 900)
  {
  x=900+20;
  y=y+20;
  scrollvar="yes";
  }

 zoomed=window.open("","_blank","height=" + y + ",width=" + x + ",toolbar=no,scrollbars=" + scrollvar + ",menubar=no");
 zoomed.document.write("<html>\n<body leftmargin=0 topmargin=0 marginwidth=0 marginheight=0>\n");
 zoomed.document.write("<a href=\"javascript:window.close();\"><img src=\"" + src + "\" width=" + oldx + " height=" + oldy + " border=0 alt=\"Click to close.\"></a>\n");
 zoomed.document.write("</body></html>");

 zoomed.document.close();
 }
