Hola caricatos gracias por tu ayuda pues el codigo como tal lo entendi, la duda que tengo es como hago para que un nodo me quede con atributos colspan y rowspan.. Bueno te dejo el codigo de el fomulario para que me entiendas mejor cual es el table que necesito "duplicar" o "clonar"..
Hasta pronto y gracias
Código HTML:
<html>
<head>
<link href="estiloorigen.css" rel="stylesheet" type="text/css">
<script language="javascript" src="datos.js">
</script>
</head>
<body background="Imagenes/fondo.jpg">
<title></title>
<form name="forma10" id="forma10" method="POST" action="forma10.php" enctype="multipart/form-data">
<table width="770" border="1" cellspacing="0" cellpadding="0" class="tabla" align="center">
<tr class="row3">
<td width="8%">5. Item Number</td>
<td width="30%">6. NANDINA</td>
<td width="28%">7. Number and kind of packages; description of goods</td>
<td width="17%">Cantidad</td>
<td width="17%">8. Origin Criterion (See Notes Overleaf)</td>
</tr>
</table>
<div id="seccion5">
<table id="detsec5" width="770" border="1" cellspacing="0" cellpadding="0" class="tabla" align="center">
<tr class="row2">
<td width="8%" rowspan="5"><input name="secuencia0" id="secuencia0" type="text" size="1" maxlength="2" value="1" align="right" class="cajita" disabled/></td>
<td align="center" width="8%">
<select name="prueba0" size="1"><option>Prueba</option></select>
</td>
<td width="30" rowspan="5"><textarea name="descrip0" id="descrip0" type="text" cols="24" rows="7" value="" align="right" onChange="mays(this)">Seleccione la partida arancelaria..</textarea></td>
<td width="17%"><input name="cantidade0" id="cantidade0" type="text" size="4" maxlength="3" value="" align="right" onChange="mays(this)" class="cajita"/></td>
<td ><input name="criterio0" id="criterio0" type="text" size="15" maxlength="20" value="" class="cajita1" /></td>
</tr>
<tr class="row3">
<td>6. Marks and Number of packages</td>
<td>Peso Neto</td>
<td>Gross weight or other quatity</td>
</tr>
<tr>
<td width="30%" rowspan="5"><textarea name="marca0" id="marca0" type="text" cols="25" rows="3" value="" align="right"></textarea></td>
<td><input name="pesoneto0" id="pesoneto0" type="text" size="15" maxlength="20" value="" class="cajita1"/></td>
<td><input name="gross0" id="gross0" type="text" size="15" maxlength="20" value="" class="cajita1"/></td>
</tr>
<tr class="row3">
<td>Valor FCA</td>
<td>Number and date of invoices</td>
</tr>
<tr>
<td><input name="valorfca0" id="valorfca0" type="text" size="15" maxlength="20" value="" class="cajita1"/></td>
<td><input name="Fecha0" type="text" id="Fecha0" size="10" maxlength="10" onChange="mays(this)">
</td>
</tr>
</table>
<table width="760" border="0" cellspacing="0" cellpadding="0" align="center">
<tr align="center">
<td align="center"><input type="button" name="bcanex" id="bcanex" value="Adicionar Articulo" onClick="pre_mostrar_detsec5()"></td>
<td><input name="numfila5" id="numfila5" type="hidden" size="3" maxlength="3" disabled class="cajita" /></td>
</tr>
</table>
</div>
</form>
</body>
</html>