select/deselect

[tiger66]

Hi
I am just wondering how can I use javascript to select one of the radio button (by value?)
How can I use js to select/deselect checkbox?

Thanks

[Jona]

<form action="" name="myForm"><div>
<label for="radio1">Radio:</label><br>
<input type="radio" name="radio1" id="radio1" value="radio1" checked="checked"><br>
<label for="button1">Button:</label><br>
<input type="button" onClick="this.form.radio1.checked = (this.form.radio1.checked) ? false : true;" value="Check/Uncheck Radio Button" id="button1">
</div></form>


[J]ona

[tiger66]

If I have 3 radio buttons
<input type="radio" name="radio" value="blue">
<input type="radio" name="radio" value="green">
<input type="radio" name="radio" value="red">

how can I write a js to select "blue" radio button?

Thanks

[Jona]

<form action="" name="myForm"><div>
<label for="blue">Blue:</label>
<input type="radio" name="blue" id="blue" value="blue"><br>
<label for="green">Green:</label>
<input type="radio" name="green" id="green" value="green"><br>
<label for="red">Red:</label> <input type="radio" name="red" id="red" value="red"><br>
<label for="butn1">Select Blue Radio Button:</label> <input type="button" id="butn1" value="Select Blue Radio Button" onClick="this.form.blue.checked;">
</div></form>


[J]ona

[tiger66]

Hi Jona
In the line "onClick="this.form.blue.checked" which blue are you refering to? (label? name? id? or value?)

Thanks so much for all your help

[Jona]

In the example, I refer to name. The ID attribute is used for the LABEL element.

[J]ona