Seleccionar multiples "checkbox"?

Manoloweb · #1 (**permalink**) 08/09/2002, 15:33

Alguien puede orientarme sobre la manera de colocar una casilla de verificación (checkbox) que al seleccionarla se seleccionen tambien todos los elementos de una lista de "checkboxes"?

(Algo asi como en Hotmail)

Gracias!

<tr>
<td bgcolor="#339933"> <font face="Verdana, Arial" size="1" color="#FFFFFF">>>
[/CODE]</td> <td align="right" bgcolor="#666666">

bet · #2 (**permalink**) 10/09/2002, 11:22

Algo así es lo que buscás?

Código:

 &lt;html&gt;
&lt;head&gt;
&lt;title&gt; Marcar Todos &lt;/title&gt;
&lt;script language=&quot;JavaScript&quot;&gt;
&lt;!--
function marcarTodos(){
	if (document.forms[0].todos.checked){
		for (i=0;i&lt;document.forms[0].length;i++){
			if ((document.forms[0].elements[ i].name) == &quot;clt&quot;){
				document.forms[0].elements[ i].checked = true;
			}
		}
	}
	else {
			for (i=0;i&lt;document.forms[0].length;i++){
			if ((document.forms[0].elements[ i].name) == &quot;clt&quot;){
				document.forms[0].elements[ i].checked = false;
			}
		}
	}


}
//--&gt;
&lt;/script&gt;

&lt;/head&gt;

&lt;body bgcolor=&quot;#FFFFFF&quot;&gt;
&lt;form method=post action=&quot;&quot;&gt;

Marcar/Desmarcar todos &lt;input type=&quot;checkbox&quot; name=&quot;todos&quot; onClick=&quot;marcarTodos();&quot;&gt;&lt;br&gt;&lt;br&gt;
* &lt;input type=&quot;checkbox&quot; name=&quot;clt&quot;&gt; &lt;br&gt;
* &lt;input type=&quot;checkbox&quot; name=&quot;clt&quot;&gt; &lt;br&gt;
* &lt;input type=&quot;checkbox&quot; name=&quot;clt&quot;&gt; &lt;br&gt;
* &lt;input type=&quot;checkbox&quot; name=&quot;clt&quot;&gt; &lt;br&gt;
* &lt;input type=&quot;checkbox&quot; name=&quot;clt&quot;&gt; &lt;br&gt;
&lt;/form&gt;
&lt;br&gt;&lt;br&gt;&lt;br&gt;
&lt;br&gt;&lt;br&gt;
 &lt;/body&gt;
&lt;/html&gt;

<hr noshade size=1><img src="http://www.gograph.com/Images-8712/ClipArt/cat03.gif" height="50" border=0 align="absmiddle"> <font size="2" face="verdana" color="#000000">bet[/CODE]