onclick check right radio button

Hi there folks,after a great help from tommy the other day,
i finally managed to perfection what i wanted to archive.

However to make the user experience nicer,i need to know one more thing to make my application the killer application=)

Basicallly to recap a little what ive done.

I have a colorpallete, and 7 attributes that can be filled.
each attribute stands for a radiobutton,next to the radiobutton is a textfield with the selected color for that attribute,which change as you click another color.

Now this works great,but since people can also put instead of selecting a color from the pallete a color theirself
it happens people forget to select the attribute for that .
And so i would like that when a person clicks on a textbox(next to the attribute) that that radiobutton gets checked automatically instead of finding out later that the wrong radiobutton was checked and that for this the color filled the wrong attribute.

Ups i see i typed alot,hope it makes sense
a little code is this:

<label>
<input type="radio" name="attributes" value="backgroundColor" checked>

<b>B</b>ackground </label></td><td>
<input type="text" name="backgroundcolortextfield" size="7" onclick="document.form1.attributes.backgroundColor.value=checked" onchange="return shouldsetbg(this.value)" value="#FFFFFF">

And i m getting the error with this one:

onclick="document.form1.attributes.backgroundColor.value=checked"

hope anyone can shed some light
thanks

 

Try

onclick="document.form1.attributes[0].checked=true"

 

perfect!

thanks