document.write("</tr><tr>")
document.write("<td colspan='2' height='2'><img src='/medio_ambiente/images/l_roja.gif' width='780' height='2' Alt='Línea roja'></td>")
document.write("</tr><tr>")
document.write("<td colspan='2' valign='middle'>")
document.write("<table width='780' bgcolor='#FFFFFF' cellspacing='0' cellpadding='0' border='0'> ")
document.write("<tr>")
document.write("<td background='/medio_ambiente/images/fondoizq.jpg' width='150'>&nbsp;</td>")
document.write("<td background='/medio_ambiente/images/fondocen.jpg' width='520'><p class='TituBar'>")