How can we deselect options in html dynamically (using javascript)

[ahmad]

when i used the statment
for(var i = 0; i < menu.length; i++)
{
menu.options[i].selected = "false";
}

to deselect all the options within a list, it surprisingly selected all
the options. I tried another option like

menu.options[i].removeAttribute("selected");

it also didnt work without any error message.

what would be the solution of this problem. i want to deselect all the
options of a list dynamically.

[VK]

ahmad wrote:

when i used the statment
for(var i = 0; i < menu.length; i++)
{
menu.options[i].selected = "false";
}

to deselect all the options within a list, it surprisingly selected all
the options. I tried another option like

menu.options[i].removeAttribute("selected");

it also didnt work without any error message.

what would be the solution of this problem. i want to deselect all the
options of a list dynamically.

AFAIK select-multiple requires physical user interaction (Ctrl+Click
etc.) to make multiple selections. This interface is not
programmatically exposed - it's part of interface protection.

Together with your other post (styling separate select options) I would
suggect either to change the whole concept (whatever it is right now)
or to use a DHTML widget instead of conventional <select>.

[Michael Winter]

On 08/03/2006 09:24, ahmad wrote:

when i used the statment
for(var i = 0; i < menu.length; i++)
{
menu.options[i].selected = "false";
}

to deselect all the options within a list, it surprisingly selected all
the options.

The selected property is a boolean, and /any/ non-empty string
type-converts to true. So, that assignment might as well have been:

menu.options[i].selected = true;

[snip]

Hope that helps,
Mike

--
Michael Winter
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